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5
1. Install batteries
Insert 1XAA batteries in the battery compartment.
The LED indicator will turn on for four seconds and
normally flash once every 49 seconds (the sensor
transmission update period).
Note:
If no LED light up or is lighted permanently,
make sure the battery is inserted the correct way
or a proper reset is happened. Do not install the
batteries backwards. You can permanently
damage the outdoor sensor
Note: We recommend lithium batteries for cold
weather climates, but alkaline batteries are
sufficient for most climates.
We do not recommend
rechargeable batteries. They have lower voltages,
do not operate well at wide temperature ranges, and
do not last as long, resulting in poorer reception.