La Crosse Technology WIRELESS WEATHER STATION Instruction Manual page 64

separately.
1. In normal display mode, press the CH button to select a channel. The
channel Identification No. (channel No.) will be displayed above the
outdoor temperature reading.
Note: The transmitter number will only be displayed if more than one
transmitter is applied.
2. Press the MIN/ MAX button once. The "max" icon will be displayed.
3. Press the SET button, this will reset the outdoor maximum temperature
and humidity record to the current value.
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