Wireless extender for an existing wired doorbell
Updated: 22 October 2026
The push by the front door still works. The ding-dong lives in the hall, and the kitchen, the landing or the garage does not hear it. A wireless extender for an existing wired doorbell is the kit that leaves that button in place and adds a plug-in receiver, powered from the transformer circuit you already have. It is not a video doorbell, and it is not a Blink terminal converter bought because it was cheaper. This page stays on that wired job. This page is from Peter F., editor for DIY & tools. Prices and the full grid are on the [doorbell extender comparison](/hub/electronic-surveillance/doorbell-extender).
The push by the front door still works. The ding-dong lives in the hall, and the kitchen, the landing or the garage does not hear it.
The push by the front door still works. The ding-dong lives in the hall, and the kitchen, the landing or the garage does not hear it. A wireless extender for an existing wired doorbell is the kit that leaves that button in place and adds a plug-in receiver, powered from the transformer circuit you already have. It is not a video doorbell, and it is not a Blink terminal converter bought because it was cheaper. This page stays on that wired job. This page is from Peter F., editor for DIY & tools. Prices and the full grid are on the doorbell extender comparison.
Our top picks
| Badge | Product | Receivers | Stated voltage | Radio | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  SINGCALL SINGCALL wired extender, portable receiver | 1 | 3–24 V | Not stated | 8.4 | about £39.99 | View offer |
| Best value |  Besimlive Besimlive wired extender, 1 receiver | 1 | Not stated | 433 MHz | 7.6 | about £9.99 | View offer |
| Alternative |  Besimlive Besimlive wired extender, 2 receivers | 2 | Not stated | 433 MHz | 7.0 | about £29.99 | View offer |
On this page
What counts as a wired doorbell
A wired doorbell here means a button and a chime on a transformer secondary, commonly 8 V or 12 V AC, sometimes 24 V. Ring’s UK wiring article tells you to look for those voltages and to treat thick blue and brown as mains or as an integrated transformer. The transmitter joins that low-voltage circuit. The receiver plugs into a 13 A socket. You do not replace the outdoor button unless the button itself is dead. If you are still unsure, the doorbell extender buying guide splits the three circuits.
If the only conductors are blue and brown, or the chime has no separate transformer, you are not in the DIY these listings describe. A bathroom zone is the same stop under Approved Document P in England and Wales. Scotland’s rules are the Technical Handbooks. No transformer at all is also outside this page. Honeywell, Doorbell World and Friedland’s discontinued Evo D471 pair only with their own chimes. None of those is a row in our eleven.
The kits in this comparison
Besimlive WET02-1T1, B0G2XRR8YS, is £9.99 and 433 MHz. Stars are 3.6 from 3: a garage that heard the push, and a Nest that kept retriggering. Voltage is not stated. The plug-profile field says Window Mount, which is not a BS 1363 description.
Besimlive WET02-1T2, B0DWMY731M, is £29.99, with a colour line that says two receivers, at 3.3 from 5. The included-components field says 1.
SINGCALL, B0F37PYSYT, is £39.99 and writes 3–24 V, mute and an LED, at 4.0 from 203. Frequency is not stated. PHYSEN WET03B mentions traditional wired doorbells, but those listings are video-doorbell converters. The wired shortlist is WET02 and SINGCALL.
Nest, Google, and open-air range
A Nest or Google wired doorbell is not the same circuit as a mechanical chime. In the three-review Besimlive file, a Nest kept firing the extender. In the five-review file, a Google doorbell needed extra parts. SINGCALL’s 203 reviews include one verified Google Nest mention, which is not a certificate. Some Google installs only worked with Google’s own chime connector.
Besimlive states 656 ft, the seller’s 200 m figure. SINGCALL states 100 m in open areas. Ofcom’s IR 2030 does not measure your hallway. SINGCALL never names a frequency, so you cannot quote 433 MHz for that box.
When a Blink listing is the wrong shelf
BITIWEND, PHYSEN WET03A and Besimlive B22 are built around Blink rear terminals. Several say the old chime wires must come off, or that the kit is not for a Blink already on a wired chime. Buying one to add a speaker to a Friedland either does nothing, because there is no Blink to power the transmitter, or it asks you to remove the chime you were trying to keep. The £5.99 price is not a discount on the wired job.
If the thing on the wall is a Blink, the limits and Blink’s line that third-party wireless chimes are not compatible belong on the Blink chime extender page. If the transformer label is missing, or the only cable is mains, stop. A second £9.99 order will not create an 8 V secondary that was never there.
Common questions
Can I keep my existing button?
Yes, on the kits this page is about. Besimlive WET02 and SINGCALL are described as add-ons for a doorbell that already has power. You are adding a receiver, not a new outdoor push. A Blink converter that tells you to remove the old chime wires is a different product and a different page.
Will it work on any wired doorbell?
It works on the circuit the listing describes: a powered wired doorbell, and for SINGCALL a stated 3–24 V window. It does not work on a battery-only video doorbell, which WET02 excludes in words. A mains chime with blue and brown and no transformer is a stop, not a third compatibility mode. Nest and Google results in the small Besimlive files are mixed.
What voltage should I look for?
Look for about 8 V, 12 V or 24 V AC on the transformer, which is the usual UK doorbell secondary. SINGCALL writes 3–24 V and a transformer above 24 V. The Besimlive wired rows do not state a voltage, so you are matching existing wired doorbell rather than a number. No label means you do not connect the transmitter to find out.
Does 656 ft mean the back garden?
No. That figure is the seller’s open-air claim, also written as 200 m on the £9.99 Besimlive. SINGCALL’s open-air claim is 100 m. Walls, foil insulation and a receiver in a metal cabinet cut it down. Test in the real room. Ofcom’s short-range rules do not add metres through brick.
Will it work with a Nest or Google wired doorbell?
The files do not support a yes. One of three Besimlive reviews describes a Nest that retriggered. One of five on the two-receiver kit says Google needed extra parts. SINGCALL has a Nest mention inside 203 reviews, beside returns and distorted sound. Use the doorbell maker’s chime connector where they provide one, and treat a 433 MHz kit as unproven on that video doorbell.
What if there is no transformer?
Then this is not a two-wire DIY. A new mains supply for a doorbell transformer is electrician work. A battery wireless set that replaces the button avoids that work and is a different product from the extenders here. Do not put a Blink terminal kit on a bare wall and expect the old chime problem to disappear.
Related pages
Sources
Public UK sources from the research digest, plus the amazon.co.uk listings for these eleven ASINs. The only dated listing note in that file is 19 October 2026.
- Ofcom IR 2030, UK interface requirement for short-range devices (retrieved 19 October 2026)
- Blink UK, doorbell chime options (retrieved 19 October 2026)
- Ring UK, checking existing doorbell wiring (retrieved 19 October 2026)
- Ring UK, Chime (3rd generation) (retrieved 19 October 2026)
- Approved Document P, electrical safety in dwellings (retrieved 19 October 2026)
- Electrical Equipment (Safety) Regulations 2016, regulation 35 (retrieved 19 October 2026)
- OPSS product safety report, electric doorbell EY-A001929 (retrieved 19 October 2026)
- RNID, doorbells for hearing loss (retrieved 19 October 2026)