SET key

Press and hold the key to enter manual setting modes: LCD contrast, 12/24 hour time display, time zone, daylight saving time ON/OFF, manual time setting, calendar, WWVB ON/OFF, ºF/ºC temperature unit, pressure unit, relative pressure setting and language display

Confirm weather alarm in the setting mode

Reset individual MIN/MAX temperature/humidity record

Turn weather alarm off when sounding

!<deleted bullet>! CH key (Channel key)

Select channel 1, 2, or 3 (if more than 1 transmitter is used)

Exit setting mode

Detect/Re-detect transmitter’s signal for all channels

Turn weather alarm off when sounding

MAX/+ key

Display MAX indoor / outdoor temperature and humidity records with time of recording

Increase all values in manual setting modes

Increase the weather alarm values

Turn weather alarm off when sounding

Reset max/min record

MIN/- key

Display MIN indoor and outdoor temperature and humidity records with time of recording

Decrease all values in manual setting modes

Decrease the weather alarm values

Turn weather alarm off when sounding

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La Crosse Technology WS-9020U 915MHZ instruction manual SET key, MAX/+ key, MIN/- key