Signaling Systems : Telephone, Door, Sound: Doorbell / Doorknock Choose a Product
SL-6144A (TR-34) Wireless Doorbell Strobe Chime
The TR-34 features a flashing light and chime sound, perfect if you are hard of hearing or work in a noisy environment.
Simply install the battery into the push button transmitter, plug the receiver into a convenient wall outlet and it is ready for use.
Krown Door Knocker 125 "Always know who's knocking at your door"
It is portable and convenient for travelers. Can also be used in hotels, offices, dorms or one room apartments.
DB10L Door Knock Beacon (Single Room) This stand alone door knock sensor has an extra bright light that flashes for several seconds after someone knocks on the door.
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