Changing battery
4.2.2
For mounting the window / door contact with the sup-
plied screws, please proceed as follows:
•
•
•
5
If an empty battery is displayed via the app or the device
(„6.4 Error codes and flashing sequences" on page 28),
replace the used battery by a new LR03/micro/AAA bat-
tery. You must observe the correct battery polarity.
To replace the battery of the window / door contact,
please proceed as follows:
•
24
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Screw mounting
Using screws will damage the window and/or
door. For those living in rented accommodation,
this could lead to a landlord making claim for
compensation or holding back a tenant's deposit.
Mark the bore holes (A) on the window / door
frame (see figure 8).
If you are working with hard surfaces you should
pre-drill the holes marked using a 1.5 mm drill
(not necessary for soft surfaces).
Place the electronic unit (B) to the desired
mounting location and turn both countersunk
head screws into the bore holes (A) (see figure 7).
Changing battery
Pull the cap (D) off the electronic unit (B). There-
fore, gently squeeze the cap from above and
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