BT01 – BT05

Features:

• 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
  relay)
• 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.