Will a Doorbell Extender Work With My Doorbell?
Extenders work with standard wired chimes that play a ding-dong sound. They do not work with video doorbells, intercoms or alarm systems.
Updated: October 15, 2026Original publish date: October 15, 2026
A doorbell extender works if you have a standard wired doorbell chime, the kind that plays a "ding-dong" for the front door and often a "dong" for the back door.
Voltage
- ERA-EXTX (in the ERA-EXKIT): works with 5V-28V AC/DC wired doorbells.
- LRA-EXTX (in the LRA-EX1000 and LRA-EX1000S): works with 9-18V AC wired chimes.
Front and back doors
Both transmitters handle two doors wired to the same chime. You can set one melody for the front door and another for the back, so you know which door it is. If your chime is wired for the front door only, that works too.
What extenders do not work with
- Video doorbells, including Ring.
- Intercom systems.
- Doorbells that are part of an alarm system.
If you have one of these, an extender is not the answer. A wireless doorbell kit with its own button and receivers is the usual alternative.
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