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YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

01 02 04 05 06 07 0803
4. Gently pull on the patient's ear, then fit the probe snuggly into the ear canal.
patients over one year of age, pulled back and up as in Figure 5;
Patients under one year of age, pulled back as in Figure 6.
NOTE: Do not move while measuring.
5. Press and release the measure button " ", after about one second, the
device will beep to prompt the end of measurement and display the measure-
ment results.
NOTE: When the measurement is completed, the device will display " ",
When " " appears, the next measurement can be taken.
Time interval of each measurement less than 12s.
6. To take the next temperature measurement, press the probe cover replace-
ment button to remove and discard probe cover, and put on a new, clean and
undamaged probe cover.
7. If there is no need to perform the next measurement, please take off the used
probe cover, put on the cover and put in the protective case.
2. Attach probe cover.
Take a new, clean probe cover, align
the center of the probe cover with the
center of the probe and insert it to the
end to ensure that the probe cover is in
place, as shown in figure 2.
NOTE: Please use the designated probe
cover, otherwise the accuracy of the
measurement will be affected. Please
contact the agent or manufacturer to
purchase special probe cover.
NOTE: Probe cover is single-use.
Please use clean and undamaged new
probe cover before each measurement.
Please make sure the sensor lens is
clean and intact before wearing the
probe cover.
3. Press the measure button " " to
switch on. During an internal
self-check, the display shows all
segments as shown in figure 3. After
self-check, it displays the pending test
status as in Figure 4, and the indicator
light is on.
1. High temperature reminder
When in use, if the temperature measurement is over 37.5℃, there will be a long
beep followed by three short beeps to remind the user.
2. Memory mode
Press the memory button " ", memory value inquiry can be carried out. The
device can store 10 groups of memory values. When the number of groups
exceeds the specified number, the latest memory value will cover the earliest
memory value.
In memory mode, press and hold the Memory button " " for about 5s, when
CLr is displayed on the screen, the memory value is cleared.
3. Power off
Manual power off: Long press the Measure button " " to switch off.
Automatic power off: The device will power off automatically without any
operation after 60s±10s.
4. Temperature unit switch
In power off state, press the measure button" " and hold for about 8s‒12s to
enter the temperature unit switching state, press the memory button " " to
select "℃" or "℉" temperature units, then press the measure button " " to
confirm.
5. Bluetooth
(1) Download & Install
Method 1: Search and download Yuwell HealthCare+ app in App Store or
Google Play store.
Method 2: Scan the QR codes below to download and install.
(2) Measurement
Launch the Yuwell HealthCare+ app, choose temperature measuring interface,
and ensure the Bluetooth is enabled on the smart device. Then attach a new,
clean probe cover and take a measurement.
NOTE: Thermometer will automatically search for and connect to smart device
when switched on.
NOTE: When using thermometer with a smart device, keep both devices within
the recommended range of each other (see Bluetooth technology information
for details); moving outside of this range may cause a loss in connection with the
IV. Operation
V. Functions
VI.Care and Cleaning
II. Device Structure and Composition
I. Indications for use and Working Principle
III. Warnings and Cautions
Proper use is critical to be obtaining accurate temperatures. Therefore, read the
instructions for use carefully and thoroughly.
Safety Warnings and Cautions
WARNING: Do not use in the presence of flammable anesthetics or other
flammable substances, oxygen-enriched environments, or nitrous oxide to
avoid the risk of explosion.
WARNING: Device application component materials are certified for biological
compatibility.
CAUTION: Due to the limited size of the label, the font is too small, please put it
at a suitable location for viewing.
CAUTION: Do not inhale or swallow small parts. Please pay attention to device
storage to prevent damage caused by pets and pests.
CAUTION: Please replace the probe cover before each use to ensure measure-
ment accuracy and avoid cross-infection.
CAUTION: Do not leave the thermometer unattended around children. Small
items such as probe cover may become choking hazards.
Performance Warnings and Cautions
WARNING: Avoid dropping the thermometer from a height, as damage to the
probe may affect the accuracy of the measurement.
WARNING: The ear thermometer should not be transported without packaging,
so as to avoid the influence of mechanical vibration on temperature measure-
ment accuracy.
WARNING: This device contains sensitive electronic components and should be
avoided in the environment with strong electromagnetic interference (such as
mobile phones, microwave ovens, etc.) to prevent temporary impact on its
accuracy.
CAUTION: In order to measure the accurate temperature value, when measur-
ing, please make sure that the probe is aligned with the eardrum and closely
contacted with the ear canal.
CAUTION: The temperature of left and right ears of the same person is usually
slightly different. It is better to measure the same ear every time for comparison.
CAUTION: The measurement results are only for reference and cannot replace
the diagnosis of doctors. Some people do not have fever when they are ill. If you
feel unwell, whatever the measurement results are, it is recommended to see a
doctor immediately.
CAUTION: Sleep on one side can cause the temperature of the pressed ear to
rise. It is better to wait a few minutes before measuring.
CAUTION: The ear canal should be kept clean, because too much earwax in the
ear canal will affect the accuracy.
CAUTION: Do not try to measure when the device is wet, which may lead to
inaccurate measurement results.
CAUTION: Do not measure the body temperature within 30 minutes after
exercise, bathing or eating. At these moments, the body temperature is
deviated from the normal body temperature.
CAUTION: Do not use the thermometer if there is blood or drainage in the
external ear canal.
CAUTION: Use the untreated ear if prescription ear drops or other ear medica-
tions have been placed in the ear canal.
CAUTION: Patients who have deformities of the face and/or ear may not be able
to have a temperature taken with the ear thermometer.
CAUTION: Complete ear canal occlusion due to cerumen (ear wax) can result in
lower temperature readings.
CAUTION: If there is a temperature difference between the device storage place
and the measuring environment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the measurement results may
have errors.
CAUTION: If multiple measurements are required for the same person, remove
the thermometer from the ear canal after each measurement, and follow the
measurement steps to re-test.
CAUTION: Limitation, the device could not instead of rectal thermometer for
rectal temperature.
CAUTION: When using the thermometer with a smart device, keep both devices
within the recommended range of each other (see Specifications for details);
moving outside of this range may cause a loss in connection with the smart
device.
CAUTION: When using the thermometer with a smart device, relocate the
devices away from sources that may interfere with the Bluetooth connection.
The presence of other devices that may create radio frequency interference
(RFI) may result in loss of Quality of Service (see Specifications for details) of
the Bluetooth connection. Devices that may cause RFI include but are not
limited to the following: electrocautery equipment, diathermy equipment, other
cellular telephones, wireless PC and tablets, pagers, RFID devices, MRI, and
electromagnetic security systems.
Care and Cleaning Warnings and Cautions
WARNING: Do not immerse this device in medical alcohol or other liquids.
WARNING: Avoid liquid contact with device metal parts.
WARNING: The cleaned devices shall be stored in a dust-free and dry place,
please avoid direct sunlight; do not store the device in a place with high
temperature, humidity, dust or corrosive gas.
WARNING: This device is suitable for multiple people. In order to prevent
cross-infection, new probe cover needs to be replaced before each measure-
ment. It is recommended to clean this device before use.
WARNING: The sensor lens is an infrared optical component, which is the most
frequently damaged and stained part. To ensure the measurement accuracy,
the cover must be worn after the measurement.
WARNING: Patient can use the thermometer to take the measurement by
Installing the AA batteries
1. Pull and remove the battery cover.
2. Put the battery into the battery compartment according to
the instructions of the positive and negative poles in the battery
compartment. (The device will carry out internal self-check,
the display shows all segments as shown in figure 3)
NOTE: The thermometer will not work if the batteries are
inserted in the incorrect orientation.
3. Install the battery cover.
NOTE: The battery attached to this device is for trial use.
Please replace them with new batteries when testing.
4.Battery Reminder
The state of the internal electrical power source will display a
●Indications for use: The Infrared ear thermometer is indicated for the intermit-
tent measurement of human body temperature from ear canal for people of all
ages except for pre-term babies or small for gestational age babies in
professional use and home use environment. Not for emergency clinical
condition. The probe cover is used as a sanitary barrier between the infrared
ear thermometer and the ear canal.
●Working Principle: The infrared ear thermometer is equipped with an infrared
sensor, which can transform the infrared light released by human ear
membrane into corresponding electrical signal. The signal is corrected by the
amplifier and signal processing circuit according to the internal algorithm of the
instrument and the targeted emissivity, and then transformed into the tempera-
ture value of the measured human body. The YUWELL® Infrared ear thermom-
eter is a non-contact thermometer according to the working principle.
●Contraindications:
Do not use ear thermometer, if there is inflammation in the ear canal.
Do not use an ear thermometer if you have not fully recovered from surgery or
ear canal trauma
VII. Troubleshooting Instructions
Memory mark
Battery level
Probe cover
prompt
Measurement
status
Temperature
units
Display area of
measuring
℉℃
Thermometer has been
turned off automatically
Blank screen
The batteries were wearing out
Screen is still blank
Restart
Check whether the battery is
installed correctly
Replace with new batteries
Please contact the dealer
for repair
No probe cover is attached or
probe cover is not in place
Attach the probe cover in place
Low power unable to use
Possible cause Troubleshooting methods
Replace with new batteries
Phenomenon
of breakdown
Battery not correctly installed
Operating temperature is
lower than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉~
104℉) stand for 30 minutes
before use
Please contact the dealer for
repair
Sensor error
Operating temperature is
higher than the set value
Put the thermometer at room
temperature of 10℃~40℃(50℉
~104℉) stand for 30 minutes
before use
The use environment
temperature has a large
change compared to the
storage temperature
Put the thermometer at the use
environment temperature for 30
minutes before use
Please measure again according
to the instructions
Please measure again
according to the instructions
The temperature of the
measured object is higher
than the measuring range
of the device
The temperature of the
measured object is lower
than the measuring
range of the device
VIII. Technical Specification
Support version iOS 10.0
and above
Support version Android 5.0
and above
smart device.
(3) Measurement records
Click the "Data" on the main interface of Yuwell
HealthCare+ app to open the history records. Tempera-
ture records and curve are available.
NOTE: The Bluetooth communication is only available to
smart devices using the Yuwell HealthCare+ app. The
thermometer can only communicate to a single smart
device at one time to minimize the risk of unauthorized
access.
himself, or someone else can use the thermometer to measure the patient.
Either way, the use and maintenance methods are the same.
WARNING: All the servicing and maintenance should be operated before or after
use.
WARNING: Please takeout the battery when the thermometer will not be used for
a long period, and take the battery out of the children's reach.
WARNING: Please keep the probe clean before and after use. When the sensor
lens becomes dirty, gently wipe it with a soft dry cloth or cotton swab. Do not
wipe it with other objects, or blow the infrared sensor with your mouth.
Otherwise it may cause the sensor mirror scratch or device failure.
Compliance Warnings and Cautions
WARNING: Do not modify the device without authorization of the manufacturer.
WARNING: This device contains batteries and recyclable electronic waste. To
protect the environment, do not dispose of it in household waste, and dispose of
used batteries at an appropriate collection location in accordance with national
or local regulations.
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Howev-
er, there is no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Consult the dealer or an experienced radio/TV technician for help
●The infrared ear thermometer consists of the main engine, probe cover and
the cover.
●Detachable parts and materials for use: Probe cover (PP), Cover (PP),
Protective case (ABS), 2 AA alkaline batteries.
●Appendix: Instruction for use, 2 AA alkaline batteries, Protective case, APP
Quick Guide, Probe cover (Box of 20).
Measure
button
Indicator
light
Display
area
Memory
button
Battery cover
Probe cover
replacement
button
Infrared
sensor probe
Probe cover Cover
Sensor lens
Protective
case
different icon depending on the battery capacity. When the screen only displays
the symbol " ", prompt to replace the battery as soon as possible; when the
symbol " " is displayed, replace the battery immediately. Replace with 2 new
AA batteries, slide open the battery cover and remove old batteries. Replace the
batteries being sure to align properly as indicated inside the battery compart-
ment. Replace with new batteries, making sure the poles are in the right
direction.
Using infrared ear thermometer
1. Take the infrared ear thermometer out from the protective case, as shown in
figure 1, then remove the cover.
figure(4)
figure(3)
figure(6)figure(5)
figure(1) figure(2)
1. Before each use, check whether the sensor lens is dirty. If it is dirty, please
use a clean and dry soft cloth or cotton swab to gently wipe the sensor lens.
2. Use a clean and soft cloth with clean water to gently wipe the LCD screen and
the shell.
3. Allow the device to air dry until it is visually dry, or dry thoroughly with a soft,
clean, non-linting cloth. Drying times may vary based on the environmental
conditions.
Post-cleaning inspection
Inspect device visually after cleaning and prior to disinfection for cleanliness,
damage, and missing or illegible device labeling or markings:
1. If there is any visible soil present, repeat the cleaning procedure.
2. Damaged device shall be removed from use. Damage may include but is not
limited to corrosion, discoloration, excessive scratches, flaking, cracks, and
wear.
3. Device that has missing or illegible device labeling or marking shall be
removed from use.
Cleaning procedure
1. Display and Maximum allowable error of temperature measurement:
2. Battery Life
ITEM
Measurement range
Temperature units
Minimum discernible value
Maximum allowable error of
temperature measurement
PARAMETER
34.0℃‒42.2℃ (93.2℉‒108.0℉)
℃/℉
ITEM
Power supply
Battery life
DESCRIPTION
DC 3V (2 x 1.5V AA alkaline batteries)
New battery enables more than 3000
times measurements.
0.1℃ (0.1℉)
Within the temperature display range
of 35.0℃‒42.0℃(95.0℉-107.6℉), it
is ±0.2℃ (±0.4℉); beyond the
temperature display range of 35.0℃
‒42.0℃ (95.0℉‒107.6℉), it is±0.3℃
(±0.5℉)
NOTE: According to ISO 80601-2-56, Rated output range:34.0℃‒42.0℃
(93.2℉‒107.6℉),Rated extended output range: 42.1℃‒42.2℃ (107.6℉
‒108.0℉).
NOTE: Normal body temperature is a range. It varies by sites of measure-
ment, and it tends to decrease with age. It also varies from person to person
and fluctuates throughout the day.
The normal body temperature of most people is: Tympanic temperature:
35.5℃‒37.5℃( 95.9℉‒99.5℉), the range is just for reference.
NOTE: This thermometer meets requirements established in ASTM Standard
E 1965-98. Full responsibility for the conformance of this device to the
standard is assumed by JIANGSU YUYUE MEDICAL & SUPPLY CO.,LTD..
ASTM laboratory accuracy requirements in the display range of 37℃‒39℃
(98℉‒102℉) for infrared ear thermometers is ±0.2℃ (±0.4℉), whereas for
mercury-in-glass and electronic thermometers, the requirement per ASTM
Standards E667-86 and E1112-86 is ±0.1℃ (±0.2℉).

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: yuwellsales@yuyue.com.cn / sales@yuyue.com.cn
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .

09 11 12 13 14
10
YUWELL®
Infrared ear thermometer
YHT107
Instructions for Use
Please read the instructions for use carefully and follow the instructions
before use. For date of manufacture, please refer to the packaging.
The picture is for reference only, please refer to the actual product.
Safety and environmental protection use period
for 10 years
Protected against solid foreign objects of 12.5
mmφ and greater. Protection against vertically
falling water drops when ENCLOSURE tilted
up to 15°
Refer to instructions manual
(Background: Blue; Symbol: White)
Waste from electrical and electronic equipment
(WEEE)
SYMBOL
Type BF applied part
Caution
DEFINITION
MR Unsafe (Background color: white; Circular
frame and diagonal bar: red; Letters 'MR': black)
Temperature limit
Humidity limitation
Atmospheric pressure limitation
This way up
Fragile, handle with care
Keep dry
Date of manufacture
Serial number
Batch code
Medical device
Unique device identifier
Recyclable
Manufacturer
Bluetooth
1. From the date of purchase, the device will enjoy a free one-year warranty
with the purchase invoice. During warranty service, if you need to be provided
with circuit diagram, components, necessary materials and electrical circuit
maintenance, please contact the manufacturer.
2. The infrared ear thermometer is calibrated initially when manufactured. There
is no need for readjustment if it is used according to the instruction. If anytime
you question the accuracy of the temperature measurement, please contact the
manufacturer.
Adjusted mode is for general public; calibration mode is for after-sale person
only.
3. Free warranty service will not be provided for faults caused by the following
personal reasons:
●The following conditions are not covered by the warranty:
A. Vulnerable and consumable parts: cover, battery and probe cover;
B. Breakdown caused by unauthorized disassembly and assembly of the
device;
C. Breakdown caused by operation not in accordance with the instructions;
D. Breakdown caused by lack of reasonable maintenance;
E. Fault caused by device falling carelessly;
XI. Guidance and manufacturers declaration on EMC
EMC compliance
1.This device has been tested and found to comply with the Class B limits for
medical devices according to the IEC 60601-1-2.
2.The thermometer is suitable to be used in professional use environment and
home use environment except for near active HF SURGICAL EQUIPMENT and
the RF shielded room of an ME SYSTEM for magnetic resonance imaging.
3.The essential performance of the thermometer is measurement range
34.0℃‒42.2℃ (93.2℉‒108.0℉),Within the temperature display range of
35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.2℃ (±0.4℉); beyond the temperature
display range of 35.0℃‒42.0℃ (95.0℉‒107.6℉), it is ±0.3℃ (±0.5℉). When
used directly near strong electromagnetic interference (for example: near
mobile phones, microwave ovens, etc.), it may be temporarily inaccurate. If so,
please keep the product away from interfering devices.
4.WARNING: Use of the thermometer adjacent to or stacked with other
equipment should be avoided because it could result in improper operation.
5.WARNING: Portable RF communications equipment (including peripherals
such as antenna cables and external antennas) should be used no closer than
30 cm (12 inches) to any part of the thermometer. Otherwise, degradation of the
performance of the thermometer could result.
Table 1. Electromagnetic emissions
YY-THM0107D-01(A/0)
Revision date: Oct. 2024
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
No.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
If you have any questions, you can contact us at the following phone
number or email.
Contact number: (86-511) 8690 0890
E-mail: [email protected] / [email protected]
XII. Abbreviations Definition
RF
PC
Personal Computer
RFID
Radio Frequency Identification Devices
MRI
Magnetic resonance imaging
FCC
℃
EM
environment
℉
Fahrenheit degree
Electromagnetic
environment
App
Application
ME equipment
Medical electrical
equipment
HF SURGICAL
EQUIPMENT
High-frequency surgery
equipment
Celsius degree
Federal Communications Commission
Radio Frequency
Frequency Range
Bandwidth
Modulation
ITEM
Dimensions
Weight without battery
Frequency characteristics
Max Conducted TX Power
Recommended Range
FCC ID
2402 MHz-2480 MHz
1 MHz, 2 MHz
GFSK
UHF
3.12 dBm
~10 feet (~3 meters) line-of-sight
2A2JJ-YHT107
PARAMETER
153 mm×59 mm×37.5 mm
About 80 g
Mode of Operation
Environment
Continuous operation
Not for use in an OXYGEN RICH
ENVIRONMENT
3.Physical Characteristics
ITEM
Operating temperature range
Transport and storage temperature range
DESCRIPTION
+10℃‒+40℃ (50℉‒104℉)
-20℃‒+55℃ (-4℉‒131℉)
Humidity
Atmospheric pressure
15% to 90%, no condensation
70kPa‒106kPa
5.Environment
7.Compliance
4.Bluetooth Technology Information
EQUIPMENT CLASSIFICATIONS PER IEC 60601-1
Degree of protection against electric
shock
6.Clinical accuracy
The clinical thermometer uses
adjusted mode.
The clinical accuracy was
conducted according to the
requirements of ISO 80601-2-56.
Take the result measured by
mercury thermometer from oral
cavity as the reference. Test three
groups, the minimum number of
subjects in an age group shall be
at least 35. The test results are
shown in the table below.
REFERENCE BODY SITE Oral
Measuring site of
infrared ear thermometer
Ear canal
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
(
LA
)
CLINICAL
REPEATABI
-LITY(
σr
)
Less than
1 year of age
0.14
℃
0.76℃
0.16
℃
Aged
1-5 years
0.28
℃
1.06℃
0.19
℃
Older than
5 years
0.00
℃
0.88℃
0.19
℃
Internally powered ME equipment Type
bf applied part, applied part is the probe.
Degree of Protection from Liquid
Ingress
IP22
IX. Symbols
X. After-sales Service
F. Damage caused by external force;
4. Maintenance services beyond the
scope of warranty will be charged
according to regulations.
5. If the situations cannot be solved or
unexpected problem happens, please
consult the local distributor.
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT107
Phenomenon and standard
RF emissions CISPR 11
Harmonic Current Disturbance
IEC 61000-3-2
Limit
Class B Group 1
Class A
Test result
PASS
Not applicable
Voltage Fluctuations & Flicker
IEC 61000-3-3
–
Not applicable
Phenomenon
and standard
Immunity test levels
Test result
PASS
Professional
healthcare
facility
environment
Home
healthcare
Environment
± 8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
Electrostatic
discharge
IEC 61000-4-2
Table 2. Electromagnetic Immunity
Table 3. Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless
communications equipment.
5240
5500
5785
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance
is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, the carrier may be pulse modulated using a 50 % duty cycle
square wave signal at 18 Hz. While it does not represent actual modulation, it would be worst case.
2450
28
2400-2570
5100-5800
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
WLAN 802.11
a/n
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
9
710
745
780
810
870
930
450
704-787
800-960
430-470
1700-1990
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GMRS 460,
FRS 460
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
1720
1845
1970
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
385
Band
a)
(MHz)
380-390
Service
a)
TETRA 400
Modulation
b)
Pulse
modulation
b)
18 Hz
IMMUNITY
Test LEVEL
(V/m)
27
28
9
28
28
PASS
PASS
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Radiated RF EM
Fields
IEC 61000-4-3
Not applicable
± 2 kV
100 kHz repetition
frequency
Electrical fast
transient/burst
IEC 61000-4-4
PASS
8 A/m for 30 kHz, 65 A/m for 134.2
kHz,75 A/m for 13.56 kHz
Proximity
magnetic fields
IEC 61000-4-39
Not applicable
Voltage dips: 0 % U
T
; 0,5 cycle, 0 %
U
T
; 1 cycle, 70 % U
T
; 25/30 cycles
Voltage interruptions: 0 % U
T
;
250/300 cycle
Voltage dips,
short interrupts
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Not applicable
± 0,5 kV, ± 1 kV (Line-to-line)
± 0,5 kV, ± 1 kV, ± 2 kV
(Line-to-ground)
Surge
IEC 61000-4-5
PASS
30 A/m
50 Hz and 60 Hz
Power frequency
magnetic field
IEC 61000-4-8
Not applicable
–
Electrical transient
conduction along
supply lines
ISO 7637-2
Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless
communications equipment
Proximity fields
from RF wireless
communications
equipment
IEC 61000-4-3
Not applicable
3 V
0,15 MHz–80 MHz
6 V in ISM bands
between 0,15 MHz
and 80 MHz
80 % AM at 1 kHz
3 V
0,15 MHz–80 MHz
6 V in ISM and
amateur radio
bands between
0,15 MHz and 80
MHz
80 % AM at 1 kHz
Conducted
disturbances
induced by RF
IEC 61000-4-6
This infrared thermometer meets requirements established in ASTM Standard E
1965-98. Full responsibility for the conformance of this product to the standard is
assumed by JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD. ASTM
laboratory accuracy requirements in the display range of 37℃
to 39℃ (98℉ to 102℉) for
IR thermometers is 土0.2 ℃ (土0.4℉), whereas for mercury-in-glass and electronic
thermometers, the requirement per ASTM Standards E667-86 and E1112-86 is 土0.1 ℃
(土0.2℉).
FCC Radiation Exposure Statement:
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .
