To toggle between the display of "Weekday + date + month", "Second", "Alarm time",
and "Date + month + year"
To press and hold for 3 seconds to reset at the same time the maximum/ minimum
temperature and humidity records of indoor and the currently selected outdoor
channel (will reset all records to current level)
To stop the alarm
To switch on the backlight
MIN/ MAX
To toggle between the maximum/ minimum outdoor temperature and
maximum/minimum indoor temperature and humidity data
Note: The time/date shown is corresponding to MIN/MAX temperature data.
To stop the alarm
To switch on the backlight
ALM button (alarm)
Press for about 3 seconds to enter the Alarm setting mode
To activate/ deactivate the alarm
To stop the alarm
To switch on the backlight
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