Technical Support and E-Warranty Certificate
www.vevor.com/support
EMF TESTER
INSTRUCTION SHEET
We continue to be committed to provide you tools with competitive price.
"Save Half", "Half Price" or any other similar expressions used by us only represents an
estimate of savings you might benefit from buying certain tools with us compared to the major
top brands and does not necessarily mean to cover all categories of tools offered by us. You
are kindly reminded to verify carefully when you are placing an order with us if you are
actually saving half in comparison with the to
p major brands.
MODEL: EM4552
MODEL: EM4552
Have product questions? Need technical support? Please feel free to
contact us:
Technical Support and E-Warranty Certificate
www.vevor.com/support
NEED HELP? CONTACT US!
This is the original instruction, please read all manual instructions
carefully before operating. VEVOR reserves a clear interpretation of our
user manual. The appearance of the product shall be subject to the
product you received. Please forgive us that we won't inform you again if
there are any technology or software updates on our product.
EMF TESTER
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Warning-To reduce the risk of injury, user must read instructions
manual carefully.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:(1)This device may not cause
harmful interference, and (2)this device must accept any interference
received, including interference that may cause undesired operation.
This product is subject to the provision of European Directive
2012/19/EC. The symbol showing a wheelie bin crossed through
indicates that the product requires separate refuse collection in the
European Union. This applies to the product and all accessories
marked with this symbol. Products marked as such may not be
discarded with normal domestic waste, but must be taken to a
collection point for recycling electrical and electronic devices
This meter is a hand-held EMF tester designed to measure
electromagnetic field radiation levels around power lines, home
appliances and industrial devices. Users can make reasonable
processing or take effective prevention measures toward the
electromagnetic radiation according to the test result.
Simultaneously measure and display eletric field,
magnetic field and radio frequency field
Two magnetic field units to select from
MAX recording mode
Low battery indication
Data hold
Auto power off
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INTRODUCTION
FEATURES
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Do not tamper with the internal circuits of the instrument.
Do not bump or drop the instrument. Keep the instrument clean
and dry.
Replace the battery as soon as the low battery indicator ( )
appears on the display.
If you do not use the instrument for a long period of time, remove
the battery from the battery compartment to avoid damage.
Do not expose the instrument to direct sunlight or to extreme
temperatures and humidity.
Before use, verify the instrument's operation by testing a device
which is producing electromagnetic field. Do not use the instrument
if it operates abnormally or it is damaged.
Adhere to local and national safety codes.
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Detect electromagnetic field radiation in living environments such
as residence, office, computer room, distribution room and
transmission tower.
Test functions of electromagnetic field radiation protection products,
including assessing the effectiveness of electromagnetic shielding
in radiation protective clothing.
Detcet various RF radiation sources, including testing wireless
communication devices such as mobile phone, router and
microwave oven.
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WARNING
APPLICATIONS
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Use caution when working in the vicinity of powerful radiation
sources. Long term exposure to electromagnetic field may be the
cause of childhood leukemia and other forms of cancer.
Persons with electronic implants (e.g. cardiac pacemakers) should
avoid powerful radiation sources.
Carefully read the operating instructions for equipment generating
electromagnetic field that will be measured.
Do not operate the instrument where explosive gas, vapor or dust
is present.
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3 4
5
FRONT PANEL
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Display
Radiation Strength Indicator LED
Green indicates a low level; Yellow indicates a medium level; Red
indicates a high level.
" " Button
Short press to change the magnetic field unit.
Long press to enable or disable the automatic power-off feature.
" " Button
Short press to lock or unlock the current readings.
Long press to enter or exit the MAX recording mode.
" " Button
Short press to enable or disable the audible alarm function.
Long press to turn on or off the tester.
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5.
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3
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DISPLAY DESCRIPTION
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No.
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2
3
4
5
Electric field indication area
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7
Radiation intensity indicator:
"
" indicates a low level;
"
" indicates a medium level;
"
" indicates a high level.
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10
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Symbol Description
The buzzer sound is disabled.
The buzzer sound is enabled.
Electric field unit: volts per meter
Magnetic field indication area
Magnetic field units:
mG: milli Gauss; µT: micro Tesla
RF field unit:
milliwatts per square meter
RF field indication area
Battery level indicator
Auto power-off feature is enabled.
Maximum reading is displayed.
The detector is in Data Hold mode.
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1. Making measurements
Press and hold the " " button for about 2 seconds to turn on the
tester. It defaults to enter the real-time measurement mode.
With the tester in hand, move the head of the tester slowly towards
the object under test (as show in the above Figure). The display
simultaneously shows the measurement results of electric field,
magnetic field and radio frequency field. The tester also gives
indications to indicate the intensity of measured radiation, as
shown in the following table.
Note: The radiation intensity increases as the tester gets closer to a
radiation source.
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OPERATION INSTRUCTION
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Indicator
LED
Symbol
Buzzer
Sound
Green
RF:> 10mW/m
2
RF:5 ~ 10mW/m
2
RF:< 5mW/m
2
EF:< 40V/m
EF:40 ~ 80V/m
EF:> 80V/m
MF:> 0.8µT
MF:0.4 ~ 0.8µT
MF:< 0.4µT
Range
Yellow
Red
No
Yes
No
Yes
Whenever any of the EF, MF or RF radiation intensities reaches the
medium level (" " appears), the yellow indicator LED will light up.
If either EF or MF reaches the medium level, the buzzer will sound.
Similarly, whenever any of the three radiation intensities reaches the
high level (" " appears), the red indicator LED will light up and
the buzzer will sound.
Move the tester a little left and right and change the tester's direction,
the tester may changeits radiation intensity indication. The highest
reading displayed during the detection is the most accurate
measurement result.
The detection sensor is positioned at the head of the tester. When
making a measurement, you should hold the tester at the rear
section (below the display and the buttons) to avoid hand obstruction
which may affect the measurement results.
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Note:
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Briefly press the " " button, the readings are held on the display.
The symbol " " will appear as an indicator.
To exit the data hold mode, press this button again.
The symbol " " disappears.
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Hold the tester steadily in close proximity to the object being
measured. Avoid rapid movements, as the tester requires reaction
time.
During detection, ensure that there are no metals or other conductive
materials in the vicinity of the measured object.
2. Data Hold
When the tester is turned on, the audible alarm function is on. The
display shows the symbol " " as an indicator.
To disable the audible alarm function, briefly press the " " button.
The symbol " " appears on the display.
3. Audible Alarm Function
When the tester is turned on, it defaults to enter the real-time
measurement mode.
To switch to MAX recording mode, press and hold the " " button
for about 2 seconds. The display will show the symbol " ".
4. MAX Recording Mode
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In MAX recording mode, the display always shows the maximum
readings of all readings taken since entering this mode. Whenever
the tester detects a new value which is higher than the presently
displayed reading, it replaces the presently displayed reading with
this new value.
If you need to return to real-time measurement mode, long press the
" " button until the symbol " " disappears from the display.
The tester has two magnetic field units. You can briefly press the
" " button to switch the MF unit between mG and μT.
5. Switching Units
Press and hold the " " button to enable or disable the automatic
power-off feature. When the automatic power-off feature is enabled,
the symbol " " will appear on the display.
If there is no button press for about 10 minutes, the tester will turn off
automatically.
6. Automatic Power-off
To turn off the tester, press and hold the " " button for about 2
seconds.
7. Turning off the tester
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Battery
Cover
9V Battery
When the symbol " " appears on the display, replacement of the
battery is needed. To replace the battery, open the battery cover on the
back of the tester. Replace the old battery with a new one of the same
type, make sure that the polarity connections are correct. Close the
battery cover until it is secured in place.
BATTERY CHARGING/REPLACEMENT
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This manual is subject to change without notice.
Our company will not take the other responsibilities for any loss.
The contents of this Manual can not be used as the reason to use the
tester for special application.
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Battery:
Resolution:
Detecting Range:
Display:
Sampling Time:
Operating Environment:
Storage Environment:
Size:
Weight ( including battery ):
9V battery, 6F22 or equivalent, 1 piece
EF: 1 V/m
MF: 0.1 mG or 0.01 μT
RF: 0.01 mW/m2
EF: 1 ~ 1999 V/m
MF: 0.1 ~ 999.9 mG;
0.01 ~ 99.99 μT
RF: 0.01 ~ 99.99 mW/m2
4 digits
About 0.4 seconds
Temperature: 0°C to 40°C
Relative Humidity: < 80%
Temperature: -10°C to 50°C
Relative Humidity: < 90%
152mm x 70mm x 29mm
About 160g
SPECIFICATION
NOTE
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Instruction manual *1
Storage bag *1
9V lithium battery *1
USB charging cable *1
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DISPOSAL OF THIS ARTICLE
Dear Customer,
If you at some point intend to dispose of this
article, then please keep in mind that many of its
components consist of valuable materials, which
can be recycled.
Please do not discharge it in the garbage bin, but
check with your local council for recycling
facilities in your area.
ACCESSORIES LIST
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Address: Shuangchenglu 803nong11hao1602A-1609shi, baoshanqu,
shanghai 200000 CN.
Imported to AUS: SIHAO PTY LTD, 1 ROKEVA STREETEASTWOOD
NSW 2122 Australia
Imported to USA: Sanven Technology Ltd, Suite 250, 9166 Anaheim
Place, Rancho Cucamonga, CA 91730
REPEC
E-CrossStu GmbH.
Mainzer Landstr.69, 60329 Frankfurt am Main.
REPUK
YH CONSULTING LIMITED.
C/O YH Consulting Limited Office 147, Centurion House,
London Road, Staines-upon-Thames, Surrey, TW18 4AX
Made In China
Technical Support and E-Warranty Certificate
www.vevor.com/support
