Door Chime Extender FAQ
How doorbell extenders work, which wired chimes they fit, installation, adding receivers or a strobe, and batteries.
A doorbell extender wires into your existing wired chime and sends a signal to wireless receivers in other rooms, so you can hear the doorbell anywhere.
Extenders work with standard wired chimes that play a ding-dong sound. They do not work with video doorbells, intercoms or alarm systems.
Connect the extender's three wires to the Front, Back and Trans screws inside your wired chime, mount the transmitter, then pair it.
Yes. ERA and LRA extenders work with as many receivers as you need, and the plug-in receivers can flash a strobe with or without sound.
ERA extenders reach up to 4,000 ft and work with 5V-28V chimes. LRA extenders reach up to 1,000 ft and work with 9-18V AC chimes.
ERA and LRA extender transmitters each use one CR123A lithium battery, included, which lasts years. Plug-in receivers need no battery.
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