SET key
Press and hold for 2 seconds to enter manual setting modes: LCD contrast, time zone,
time reception ON/OFF, DST ON/OFF, manual time setting and calendar
To stop the alarm sound
+ key
To increase/change values in setting modes
Toggle between time / date / indoor humidity / seconds display
To stop the alarm sound
MIN/MAX key
To toggle between the indoor and outdoor MIN/MAX temperature
To decrease/change values in setting modes
Press and hold for 3 seconds to reset ALL indoor/outdoor minimum/maximum
temperature recordings to current readings
To stop the alarm sound
ALARM key
To activate/deactivate the alarm and display alarm time
Press and hold for 2 seconds to enter the alarm setting mode
To stop the alarm sound
To exit the manual setting mode