La Crosse Technology WIRELESS WEATHER STATION Instruction Manual page 6

SETTING UP:
When one transmitter is used
1. First, insert the batteries into the Thermo-hygro transmitter. (see "How to
install and replace batteries in the Thermo-hygro transmitter").
2. Immediately after and within 2 minutes, insert the batteries into Weather
station (see "How to install and replace batteries in the Weather
station"). Once the batteries are in place, all segments of the LCD will light
up briefly. Following the time as 0:00 and the "weather man" icon will be
displayed. If these are not displayed after 60 seconds, remove the
batteries and wait for at least 10 seconds before reinserting them.
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