Install Batteries - Ambient Weather WH2902 User Manual

5.3.4 Install Batteries

Reference Figure 5. Insert 3 x AA non-rechargeable batteries (not included) into the battery
compartment. The LED indicator on the back of the transmitter will turn on for four seconds, and then
flash once every 16 seconds (the sensor transmission update period).
(a)
Note: If the LED does not light up, or stays on permanently, make sure the battery polarity is
correct, or the batteries are fresh. Do not install the batteries backwards. You can permanently damage
the thermo-hygrometer.
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.
Version 1.0
Figure 4
Figure 5
(b)
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