Connect the Blaupunkt SD-S1 to your Blaupunkt alarm system and protect your family and house against smoke development in addition to burglary. When the smoke detector detects smoke, a sound signal of 96 decibels sounds. Since the smoke detector is connected to the alarm system, the detector immediately gives a signal to the main panel. It then sends a message to the set telephone numbers. So everyone is aware of the danger at home. Test the smoke alarm once a month with the test button and you are sure that the detector does it. The smoke alarm works on 4 AAA batteries. This allows you to place it at any desired location in your home.