Ayce TRUE BALCK 1.0 Manuel D'utilisation page 120

In alarm 1 or alarm 2 time display mode, press and
hold for 2 seconds to enter the alarm setting mode
[ ALERT ] key
10.
In normal mode, press and hold for 2 seconds to enter
thermo-hygro alert setting
[ CH / + ] key
11.
In normal mode, press to switch between Indoor and
CH 1~8 of outdoor sensor's weather display.
In normal mode, press and hold for 2 seconds to
enter auto-cycle mode of Indoor and CH 1~8 of outdoor
sensor's weather display.
In setting mode, press to increase the setting values.
[ MEM / - ] key
12.
In normal mode, press to check maximum and
minimum thermo-hygro reading with time stamp.
In setting mode, press to decrease the setting values.
[ HISTORY ] key
13.
In normal mode, press to display the past 24 hour
thermo-hygro and barometric pressure records.
[ SENSOR ] key
14.
Press to activate the pairing mode for certain
sensor's channel.
[ RESET ] key
15.
In case of malfunction, press to reset the main unit.
16.
[ °C / °F ] key
In normal mode, press to switch between °C /°F
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