08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
01 03 04 0502
5. Installation and usage
2. Device structure and composition
1. Device use and working principle
7.
Troubleshooting instructions
06 07
3. Matters need attention
9. Product technical parameters
4. Measurement and transport storage
environment
●The YUWELL® Infrared ear thermometer is a
non-sterile, reusable clinical thermometer.The
device is to display the body temperature in the ear
cavity by thermal radiation for people of all ages
except preterm babies and newborns( 1-29 days
old).
●The YUWELL® Infrared ear thermometer is a
non-contact thermometer.
●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 temperature value of the
measured human body.
●Contraindications:
Do not use ear thermometer, if there is inflammation
in the ear canal.
It is suggested to use ear thermometer after
recovery of the operation or trauma of ear canal.
●The infrared ear thermometer consists of the main
engine and the cover.
Measure
button
Display area
Memory
button
Memory mark
Battery level
Measurement
status
Temperature units
Display area of
measuring
Battery cover
Cover
Infrared
sensor probe
Caution:
The patient can use the thermometer to take the
measurement by himself, or someone else can use
the thermometer to measure the patient. Either way,
the use and maintenance methods are the same.
The probe 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.
●Cleaning and disinfection
A. Before each use, check whether the probe lens is
dirty. If it is dirty, wipe gently with cotton swab or soft
cloth stained with a little medical alcohol(70%). Wait
at least 5 minutes after disinfection before use.
Please keep the alcohol away from children.
B. Use a clean and soft cloth with medical alcohol to
gently wipe the LCD screen and the shell.
Warning: Do not immerse this product in medical
alcohol or other liquids.
C. 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.
Note: The infrared ear thermometer belongs to
precision equipment,do not let children play with it.
Be careful not to fall from high, which will affect the
accuracy of temperature measurement.
Note: The infrared ear thermometer should not be
transported without packaging, so as to avoid the
influence of mechanical vibration on temperature
measurement accuracy.
●If you do not use it for a long time, please take out
the batteries and keep it out of the reach of children.
Otherwise, it may be dangerous. In addition, if the
battery is not used for a long time, it may cause
breakdown due to battery leakage.
●This product 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.
●Please read this instruction manual carefully before
use and confirm that the batteries are installed.
●Do not disassemble, repair or modify this device. It
may cause errors in the measurement results or
cause device failure.
●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 machine failure.
●If the situations cannot be solved or unexpected
problem happens, please consult the local distributor.
1. In order to measure the accurate temperature
value, when measuring, please make sure that the
probe is aligned with the eardrum and closely
contacted with the ear canal.
2. 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.
3. 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.
4. In the following cases, it is recommended to test
three times in the same ear, selecting the highest
value:
A. 90 days old baby
B. Children under three years old with immune
diseases
C. Unacquainted with the use method, resulting in
obvious deviation of the measured value (the
measured value tends to descend if measuring the
temperature of the same ear more than three times
continuously).
5. Sleep on one side can cause the temperature of
the pressed ear to rise. It is better to wait a few
minutes before measuring.
6. The ear canal should be kept clean, because too
much earwax in the ear canal will affect the accuracy.
7. Do not try to measure when the machine is wet,
which may lead to inaccurate measurement results.
8. 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.
9. If there is a temperature difference between the
device storage place and the measuring environ-
ment, the device shall be placed in the using
environment for more than 30 minutes, otherwise the
measurement results may have errors.
10. Do not inhale or swallow small parts. Please pay
attention to product storage to prevent damage
caused by pets and pests.
11.Due to the limited size of the label, the font is too
small, please put it at a suitable location for viewing
Warnings:
●Measurment environment:
Ambient temperature range:
+10℃～+40℃(50℉～104℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
●Storage environment in transportation:
Ambient temperature range:
●Installing the battery
The device is supplied with 2 AAA alkaline batteries.
Pry the tab down and remove the battery cover, put
●Product usage
1. Remove the cover, press the measure button
“ ”, the backlight of the product will be fully
displayed, as shown in figure (1), and enter the state
to be tested after 1 second, as shown in figure (2).
Press and release measure button“ ”, after
about 1 second, the infrared ear thermometer will
beep to prompt the end of measurement and display
the measurement results.
Note: when the measurement is completed, system
processing busy, the device will prompt“ ”，
When“ ”appears，the next measurement
can be taken.
2. When the subject is testing, turn the head to one
side, make the ear up, and gently pull the ear back to
straighten the ear canal.
Note: The ears of children under one year old
should be pulled back.
The ears of children over one year old
and adults should be pulled back and
up.
Please hold it correctly when
measuring. Insert the probe of infrared
ear thermometer into the ear canal
gently and close it to ensure that the
correct temperature of eardrum is
measured as shown in the right figure:
6. Replacing the batteries
1.Battery replacement: When " " symbol is
displayed, replace with 2 new AAA alkaline batteries,
slide to open the battery cover and remove old
batteries. Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the batteries from the product if it is not
required for extended periods of time in order to avoid
damage to the thermometer resulting from a leaking
battery.
To protect the environment,dispose of waste
batteries at appropriate collection sites according to
national or local regulations.
This product contains batteries and recyclable
electronic waste.To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
●Power supply:
DC 3V(2 x 1.5V AAA alkaline batteries)
●Measurement range:
34.0℃～42.2℃ (93.2℉～108.0℉)
●Temperature units: ℃/℉
●Minimum discernible value: 0.1℃(0.1℉)
●Measuring site: ear canal
●Maximum allowable error of temperature
measurement:
34.0℃~34.9℃(93.2℉~94.8℉), ±0.3℃(±0.5℉)
35.0℃~42.0℃(95.0℉~107.6℉), ±0.2℃(±0.4℉)
42.1℃~42.2℃(107.7℉~108.0℉), ±0.3℃(±0.5℉)
●Time interval between each measurement≤12s
●Automatic power off time: 60s±10s
●Measurement duration≤2s
Ear thermometer has been
turned off automatically
Blank screen
Battery not correctly
installed
The batteries run out.
Screen is still blank
Restart the thermometer
Check whether the battery
is installed correctly
Please contact the dealer
for repair
Please measure again
according to the
instructions
The temperature of the
measured object is lower than
the measuring range of the
device
Please contact the dealer
for repair.
Operating temperature is
lower than the set value
Sensor error
Operating temperature is
higher than the set value
The temperature of the tested
object is higher than the
measuring range of the device
Put the ear thermometer
at room temperature
(10℃~40℃),
(50℉~104℉) for 30
minutes before use
Please measure again
according to the
instructions
Note: Do not move while measuring
figure(2)figure(1)
●Appendix:
Instructions, 2 AAA Alkaline Batteries.
●This device has the following functions
1. Fever reminder function: When in use, if the
measured temperature is over 37.5 ℃, there will be a
long beep followed by three short beeps to warn the
user of possible fever.
2. Memory function : press memory button“ ”,
memory value inquiry can be carried out. The infrared
ear thermometer can store 7 groups of memory
values. When the number of groups exceeds the
specified number, the latest memory value will cover
the earliest memory value.
3. In memory mode, press and hold the memory button
“ ”for about 5s, when CLr is displayed on the
screen, the memory value is cleared.
4. Automatic power off function: the product will power
off automatically without any operation after 60s ± 10s
5. Manual power off function: long press measure
button “ ” to turn off.
6. Battery replacement: 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.
7. Battery replacement cycle: new battery enables
more than 3000 times measurements.
8. Temperature unit switching: in power off state, long
press measure button “ ”for about 8s ~ 12s to
enter the temperature unit switching state, short press
memory button “ ” to select "℃" or " ℉ "
temperature units, and then press the measure
button “ ” to confirm.
the battery into the battery
compartment according to the
instructions of the positive and
negative poles in the battery
compartment, and cover the
battery cover (the product will carry
out systematic functional self
inspection such as full display).
Note: The batteries attached to
this device are for test use. Please
replace them with new batteries
when testing.
Safety and environmental protection
use period for 10 years
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
IP22
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
Protection from ingress of particulates
than ≥12.5mm. Dripping water falling
within 15° of vertical will not have a
harmful effect on the infrared ear
thermometer per IEC 60529.
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
1434
Low power unable to use
MR Unsafe items should not enter the
MRI scanner room.
Phenomenon
of breakdown
Possible cause
Troubleshooting
methods
Replace with new
batteries
Replace with new
batteries
-20℃～+55℃(-4℉～131℉)
Relative humidity: 15% to 90% (non-condensing)
Atmospheric pressure: 70kPa～106kPa
Put the ear thermometer
at room temperature (10
℃~40℃), (50℉~104℉)
for 30 minutes before
use
Serial Number
Date of effective use of the product
Batch code
LOT
8. The symbols related to safety
requirements in this device and their
meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
Recyclable
Manufacturer
MR
08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
08 10 11 1209
Table 3-Test specifications for ENCLOSURE PORT
IMMUNITY to RF wireless communications
equipment
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 ,including cables
specified by the manufacturer. Otherwise,
degradation of the performance of this equipment
could result.
This equipment might not offer adequate
protection to radio-frequency communication
services. The user might need to take mitigation
measures, such as relocating or re-orienting the
equipment.
When the instrument is in use,never put it
near other instruments or stack it on other
instruments. If you have to put it near other
instruments or stack it on other instruments,
please inspect and verify if the instrument could
run normally.
There is the potential risk of radio frequency
interference between the device and other
devices. If there is, please find out the problems
and take the following measures:
(1) Turn off the device, and turn on again.
(2) Change the direction of the device.
(3)Keep the product away from the interferential
devices.
10. Temperature sense
provided as follows, just for reference (The
measurement of yuwell thermometer refers to ear
canal)
Tympanic temperature：
35.5℃~37.5℃ / 95.9℉~99.5℉
Caution:
1.Do not move while using.
2.Under the combined effects of the environment and
the frequency of use, the product's shell temperature
may exceed 41℃. Please use it carefully.
11. After- sales service
1. From the date of purchase, the product 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.
However,it is still recommended to calibrate the
product once a year or when something goes wrong
with the clinical accuracy.
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 and
battery;
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;
F. Damage caused by external force;
4. Maintenance services beyond the scope of
warranty will be charged according to regulations;
12.
Warranty card
Warranty card
Product name:
Infrared ear thermometer
Model:
YHT101
www.yuwell.com
731002-0A
YHT101
Infrared ear thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
Manufacturer：JIANGSU YUYUE MEDICAL
EQUIPMENT & SUPPLY CO.,LTD.
Manufacturing Address：
No.1 Baisheng Road Development Zone,
Danyang, Jiangsu 212300 CHINA
REFERENCE BODY SITE Oral measurement
Less than
1 year of age
CLINICAL
BIAS(
Δcb)
LIMITS OF
AGREEMENT
（
LA
）
CLINICAL
REPEATABI
-LITY(
σr
)
According to EN 12470-5, clinical repeatability shall not
exceed ±0.3℃.
Aged
1-5 years
Older than
5 years
-0.16
℃
0.71
℃
0.14
℃
-0.11
℃
0.67
℃
0.13
℃
-0.13
℃
0.73
℃
0.13
℃
Revision date: Jan. 2024
13. Electromagnetic compatibility
information
1700-1990
2400-2570
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
1720
1845
1970
2450
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
217 Hz
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
450
385
5240
5500
5785
710
745
780
810
870
930
1720
1845
1970
2450
5100-5800
WLAN 802.11
a/n
5240
5500
5785
Pulse
modulation
b)
217 Hz
1,8
2
0,3
0,3
27
28
0,2 0,3 9
2 0,3 28
2 0,3 28
0,2 0,3 9
2 0,3 28
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
704-787
450
385
800-960
380-390
430-470
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
710
745
780
810
870
930
Pulse
modulation
b)
18 Hz
FM
c)
±5 kHz
deviation
1 kHz sine
Pulse
modulation
b)
217 Hz
Pulse
modulation
b)
18 Hz
●Electrical safety belongs to internal power supply
equipment category
●Electrical protection is type BF application part
●Degrees of protection provided by enclosures (IP
code)：IP22
●Running mode: continuous running
●Device type: Non-AP/APG device (cannot be used
in the presence of flammable anesthetic gas mixed
with air or flammable anesthetic gas mixed with
oxygen or nitrous oxide)
●Product size: 145x37x57mm
●Product weight: about 62g (excluding batteries)
●Service life: 5 years (excluding vulnerable and
consumable parts)
●This device is suitable for multiple people.
Clean and disinfect the thermometer after use to
prevent cross-infection of patients.
●This product will not cause allergic reaction and
harm to human body during normal use
●The device uses the adjusted mode in measuring
●The clinical validation 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: 0 to 1 year old, older
than 1 year and younger than 5 years, older than 5
years. The minimum number of subjects in an age
group shall be at least 35. The test results are shown
in the table below:
NOTE If necesary 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, 50% pulse
modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be
worst case.
Immunity
test
Compliance
level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
Radiated RF EM fields
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 2-Compliance information for Immunity test
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
YUWELL®
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
