Door signaling made easy at Harris Communications

Door signaling made easy at Harris Communications
When you simply want to know when you have a guest to your dorm or one room apartment door, a standalone door knock signaler will do the job. These door signaling units are not hard to install or require any additional accessories. Battery-operated models like the Krown DoorKnocker 125 and Global Door Beacon hang over your door and flash when someone knocks. For door signalers that plug into a wall power outlet, the Carlon, NuTone and Trine models feature an audible chime or strobe and come with a battery powered-doorbell.
These standalone door signalers are available at Harris Communications starting at just $29.95.
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