Ambient Weather WS-5300 User Manual page 6

Insert 2 x AA batteries in the battery compartment, as shown in Figure 5.
Note: Do not install the batteries backwards. You can permanently damage the
thermo-hygrometer. Do not use rechargeable batteries.
Note: We recommend installing Lithium AA batteries:
http://www.ambientweather.com/enaaliba4pa.html
Lithium batteries provide longer life and operate in colder temperatures.
Figure 5
Reinsert the battery compartment into the thermo-hygrometer / rain gauge transmitter (hold upright so
the batteries do not slide out), and close the battery compartment door and tighten the set screw.
The LED on the back of the rain collector will turn on for four seconds and normally flash once every
45 seconds (the sensor transmission update period).
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