Instruction Manual

7
Battery installation and maintenance
1. The product can make 3 No. 5 alkaline batteries, which can
make 20000 times continuously in theory. When there is a battery
symbol flashing on the screen, it means that the battery power is
not and the battery needs to be replaced.
2. Open the battery cover to replace the battery, and pay
attention to the correct position of the positive and negative
poles of the battery.
3. The rechargeable battery does not meet the product
requirements, please do not use the battery.
4. It is recommended to take out the battery when the battery
life is not good, so as not to damage the product due to battery
leakage.
Storage
Store in a dry, cool place, out of direct sunlight.
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When the product is in normal operation, it does not need to be
maintained frequently. When the following conditions are found,
please click "operation".
1. External dirt: clean the dirt with a soft cloth, or wipe the
dirt with a cotton swab and alcohol, and the alcohol can also be
used for sterilization. Be careful not to use too much alcohol or
alcohol to avoid internal damage.
2. Internal dirt: the internal infrared detector is an important
device, do not touch or top press other objects, otherwise it
will affect the accuracy of the measured value. When the infrared
detector is found dirty, please wipe it with 95% alcohol.
Note: do not allow 75% of sterilized alcohol to wipe the infrared
detector (traces of will remain).
It is not allowed to wipe the infrared detector with other
chemical reagent (it will cause damage to the infrared detector).