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# REPLACING BATTERY
1. When the energy of the batteries is not enough, the screen shows and
blinks the battery mark.
It indicates that the energy left could operate testing about 50 times more.
In this period, we suggest that you should replace the battery.
After replacing the battery, the stored results will remain, but the date and
time need to be reset.
2. Open the battery lid and replace the old batteries with the news ones
(CR2032).
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