Technoline WS 9750 Manuel D'utilisation page 74

To view the daily max and min temperature of another channel, user shall press the
SET/CH key in normal display.
Note:
The daily minimum temperature record is reset automatically at 8:00 pm and the daily
maximum temperature is reset automatically at 8:00 am every day.
868 MHz RECEPTION CHECK
The Temperature Station should receive the outdoor temperature data within a few
minutes after setup. If the temperature data are not received about 2 minutes after
setup (the signal reception icon does not appear), please check the following points:
1. The distance of the Temperature Station or transmitter should be at least 1.5 to
2 meters away from any interfering sources such as computer monitors or TV
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