Don't Miss Your Visitor Again!:
Unlike competing models, the DB100 is not triggered by sound; so annoying false alarms are a thing of the past.
The state-of-the-art DB100 is the only doorbell signaler that requires no wires and can be installed in seconds.
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 DB100 has a built-in outlet to flash an attached lamp and each sends a signal to all Sonic Alert remote receivers.
Use additional transmitters (up to four) to be alerted at other doors. Optional DB100T needed for additional doors (sold separately).