SEDEA 570400-2306 Notice D'utilisation page 17

• Alarme (Alarm) : Alarm mode activated. A loud alarm sounds when the
magnet is moved away from the detector (door or window opened).
The alarm stops as soon as the distance between the magnet and the
detector is reduced again.
Replacing the batteries
Remove the detector from its mounting plate at the back of the
detector by sliding it upwards.
Use a small Phillips
screwdriver to open the
battery compartment.
Remove the old batteries
and insert 4 new LR44
batteries, matching the
polarities. Close the
compartment.