Bresser 70-04403 Mode D'emploi page 26

ALARm SET key (Fig. 1, 6)
In normal mode, press it to turn Alarm 1 and Alarm2 on or
off. In Alarm 1 mode, press it to turn Alarm1 on or off.
In Alarm 2 mode, press it to turn Alarm2 on or off.
In Alarm1/Alarm 2 mode, press and hold it for approx. 2
seconds to enter Alarm1/Alarm2 time setting mode.
In Alarm setting mode, press it to move to the setting item.
In setting mode press and hold it for approx. 2 seconds to
save and exit the setting.
cH+ button (Fig. 1, 7)
In normal mode, press to select channel 1, 2 or 3 of an
remote sensor. Press and hold it for approx. 2 seconds
to activate channel auto-change mode. Press it again to
return to normal mode. In setting mode, press it to adjust
the value of flashing digit upward.
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mEm- button (Fig. 1, 8)
Press to display (for approx. 5 seconds) the max./min.
indoor and outdoor temperature records for approx. 5
seconds. In record mode, press and hold it for approx. 2
seconds to delete the max./min. values.
In setting mode, press it to adjust the value of flashing digit
downward.
°c/°F button (Fig. 1, 10)
Press to select temperature unit between °C or °F.
SENSOR button (Fig. 1, 11)
Press it to start channel test for main unit and remote
sensor.
Rcc button (Fig. 1, 12)
Press and hold it for approx. 8 seconds to turn on or off
the RC function.