REV Ritter SA-IR07-NWX03-D Manuel D'utilisation page 16

Deleting the coding:
Press the "Melody forward" button for 5 seconds, to reset the chime to the
factory settings. When the chime plays back ding-dong and the LED blinks,
resetting was successful.
Note: The coding between chime and window contact exists,
until you delete the coding as described above. Even if you remove the batteries.
Motion front view
battery
compartment
Anti-slip-
ring
mounting holes
mounting device
small nip
Sensor
blueness
display
big nip
16