User manual

33
Maintenance and cleaning
To restore the factory settings of the temperature and
humidity sensor please proceed as follows:
• Remove the cap (A) (see fig. 2) .
• Remove a battery.
• Insert the battery ensuring that the polarity is
correct (see fig. 6) and press and hold down the
system button (C) for 4 seconds at the same
time, until the LED (C) will quickly start flashing
orange (see figure 5).
• Release the system button again.
• Press and hold down the system button again
for 4s (see figure 5), until the device LED lights
up green.
• Release the system button to finish the
procedure.
The device will perform a restart.
10 Maintenance and cleaning
The device does not require you to carry out any
maintenance other than replacing the battery
when necessary. Enlist the help of an expert to
carry out any maintenance or repairs.
Clean the device using a soft, lint-free cloth that is clean
and dry. You may dampen the cloth a little with lukewarm
water in order to remove more stubborn marks. Do not