23
To exit alarm setting mode and country/city setting mode
To toggle between relative and absolute air pressure display
+
key
To increase/change values in setting modes
To stop the alarm sound
MIN/MAX
key
To switch among the display of MIN/MAX indoor temperature and MIN/MAX outdoor temperature
records
To decrease/change values in setting modes
At normal mode, press and hold the key for 3 seconds to reset
ALL
indoor/outdoor MAX/MIN
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 3 seconds to enter the alarm setting mode
To stop the alarm sound
To exit manual setting mode and country/city setting mode
SUN
key
To switch among the display of date (normal mode), seconds, sun duration and city
Press and hold for 3 seconds to enter country/city setting mode
To stop the alarm sound
To exit manual setting mode and alarm setting mode
