Big Ben door chime - 2+1 facility fixed wall mounted in white that can be powered either by battery or from an external transformer.

Two plus one chime facility - with ding dong chime for front door and a separate chime sound for back door 171mm x 105mm x 49mm - 80dB @ 1 metre.

Batteries only require a wire from the push to the chime & make it easy to install.

Using a transformer means there is no need to replace the batteries and you can use the chime with illuminated pushes.

Chime can be located up to 60m (197 feet) from push when powered by transformer.