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7. Operation instruction
Preparation
1. Check battery
Replace the batteries to ensure pow-
er supply if there is low voltage icon
for the thermometer.
2. Check sensor
If have pollution and spray, please
clean it. (The cleaning method see
the chapter 8 Care and Cleaning for
detailed.) If the sensor's lens is dam-
aged, please stop using.
3. Check thermometer
When you press the Switch meas-
urement button, the system will have
self testing of software and hard-
ware. If there are problems, LCD will
display "ErC/ErA " symbol. If found,
please refer to the chapter 13 Trou-
ble-shooting.
4. In order to make the accurate
measuring result, put the thermome-
ter in the measurement environment
for 30 minutes.
5. Accuracy of unexpected fluctua-
tions in ambient temperature may
decrease the measurement results.
When the thermometer at the same
measurement position display at
different ambient temperature, or
measure temperature in front of the
air conditioner, it will not be able to
obtain accurate results.
6. If you measure forehead temper-
ature, clean forehead and arrange
hair, make sure the forehead is na-
ked and clean, in order to ensure the
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