Instructions

10
EN
8. Inserting / changing the battery
i
The use of incorrect batteries can damage the DuoFern
Window/Door Contact.
Only use type CR2032 batteries.
Pay attention to the correct polarity when inserting the
battery, see page 11.
Signals in the case of an empty battery
1 x a short audible signal when opening/ tilting
the window or when opening the door.
A maximum of twice a day.
In the
HomePilot
®
The charge level is transmitted once a
day to the HomePilot
®
and displayed
there.