The all new, state-of-the-art, DB 100 doorbell and intercom signalers require no wires and can be installed in seconds. The DB 100 is not triggered by sound, so annoying false alarms are a thing of the past. Other advanced features include: selectable number of flashes (5 or 10), different flash code for front door, rear door, or intercom (requires additional sensor, sold separately), and a built-in chime for hearing members of the family (can be turned off). The DB 100 has a built-in outlet to flash an attached lamp and each sends a signal to all Sonic Alert remote receivers. 

Add more lamps to flash in other rooms by plugging in the wireless SA201 Deluxe Remote Receiver....or add flashing bright Strobe Lights by plugging in the wireless BL300 Sonic Blink Remote Strobe Receiver.

Optional Extra Wireless Doorbell Buttons are available for other doors.