3.2.7 Display backlight:
The display backlight can be manually turned on and off at any
time. To activate the display backlight press the backlight button.
3.2.8 Automatic shutdown:
The thermo - hygrometer has an automatic switch - off, which shuts
off the device after about 10 minutes. This automatic switch-off can
be deactivated at any time by pressing the HOLD button while the
device is switched on. The display will show "AUPdis". You can
activate the automatic switch-off after switching the device on
again.
The symbol in the lower left corner indicates that the automatic
switch-off feature is activated.
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