This smoke detector ensures that you are warned in time in case of fire. When you are at home, the built-in siren ensures that you are alerted. In combination with your Marmitek HomeGuard, the internal siren, the telephone dialer and the control system are also activated. When you are away from home, you will be alerted by telephone. The smoke detector can be used on a stand-alone basis but can also be registered with the Marmitek alarm systems: SafeGuard, TotalGuard, HomeGuard MS8000 and the SC9000 alaram power station.