19 Mar BT01 – BT05
AUDIO INDOOR UNIT
- The contact under the handset is not mechanic but magnetic. This decreases
frequent breakdowns of the device.
- Anti-block system : if for any reason the handset remains off hook, the
device resets itself and avoids the system to stay in “occupied” state.
- Easy mount and connection : Once the back plate is fixed to the wall, the
handset can be tested and replaced without any need to dismount the cables.
- Two doorbell melodies to distinguish where the visitor is (at building or apartment door)
- The melody “ding-dong” is generated by an electronic circuit whilst in most
part of handsets in the market, this ring comes from a buzzer (vibrating
- Private communication : if a handset is in communication with the outdoor
panel, no other handset can enter into communication.
- The cable of the handset has a removable connector and this gives the possibility to change the
cable in case of a breakdown without opening the device.