| Large Image Economical alerting for phone and doorbell only. Flashes a lamp that is plugged into the receiver unit to alert you to the phone or doorbell ringing. Mount the doorbell button (included) outside the door. No wiring necessary. Plug the line cord into a phone jack. When the doorbell is pressed or the phone rings, your lamp plugged into the master will flash and the appropriate icon will light up. One year warranty.
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