La Crosse Technology WIRELESS WEATHER STATION Instruction Manual page 23

TOGGLE BETWEEN THE DISPLAY OF INDOOR TEMPERATURE/
HUMIDITY, PRESET ALARM TIME AND CALENDAR
By pressing shortly the MODE/MIN key, you will toggle between the
following displays:
1. Indoor temperature and humidity;
2. Preset alarm time;
3. Month and day
3. Day and weekday;
COLOUR-CHANGING BACKLIGHT
1. The Weather station has a colour-changing EL backlight
designed for night-viewing. This will light up for about 10
seconds when any button is pressed. The case of the weather
station will also be illuminated when the backlight is ON.
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