ERA or LRA Doorbell Extender: Which Should I Choose?
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.
Updated: October 15, 2026Original publish date: October 15, 2026
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| ERA (ERA-EXKIT) | LRA (LRA-EX1000S, LRA-EX1000) | |
|---|---|---|
| Range, line of sight | Up to 4,000 ft | Up to 1,000 ft |
| Chime voltage | 5V-28V AC/DC | 9-18V AC |
| Receiver in kit | ERA-RXPG plug-in, 12 melodies, strobe | LRA-DCRXS plug-in with strobe (EX1000S); LRA-DCRX-L on three C batteries, 18 melodies (EX1000) |
| Doors | Front and back | Front and back |
| Transmitter battery | CR123A lithium | CR123A lithium |
How to decide
- Check your chime voltage first. If it is outside 9-18V AC, the LRA extender will not work; the ERA-EXTX covers 5V-28V AC/DC.
- Choose ERA for large homes, detached garages, shops and warehouses, or when the signal has to cross brick or several walls. Building materials cut range for both, so the extra distance helps.
- Choose LRA for most single-family homes where 1,000 ft line of sight is plenty.
- Stay in one series. ERA receivers work with other ERA sensors (driveway, motion, door contact); LRA receivers work with LRA transmitters.
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