This Nexus 800 series white moulded 13A double power socket with a built-in door chime and wireless push button from British General requires no wiring to the door frame and no bulky wireless adaptor keeping sockets free. An ideal retrofit solution as this fits a standard 25mm back box, features angled in-line colour coded terminals with captive screws and twin earth for high integrity circuits. The 100m (open air) wireless range and ability to pair multiple sockets and push buttons also makes this ideal for larger homes, with adjustable volume from mute up to 80dB to suit the location of the socket. The LED indicator provides visual indication of door chime activation, ideal for mute mode, noisy households and the hard of hearing, whilst the 1 in a million random code ensures no interference.