Press 1x: MAX values are displayed
Press 2x: MIN values are displayed
Press 3x: normal display indicator
In order to delete the saved values:
− Press and hold the UP/MEM button for approx.
3 seconds until the displayed values are deleted.
Otherwise, the saved values will always be
automatically deleted at midnight.
Illuminating the display
− Press the SZN/LIGHTbutton to turn on the display
backlight for approx. 5 seconds.
Changing the unit of measurement
− Press the DOWN/CF button to display the
temperature in °Celsius or °Fahrenheit.
Battery change indicator
The base station and each wireless outdoor sensor
have a battery change indicator.
If the symbol appears on the display, you must replace
the batteries of the base station and/or of the respective
wireless outdoor sensor with new ones.
Proceed as described in "Start-up". Pay attention to the
following:
Only use the type of battery that is specified in the
"Technical Data".
Always exchange all of the batteries at the same time.
Thermometer/Hygrometer WS 1823
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