The Byron Sentry BY323 60m portable & plug-in chime kit with 4 sounds is ideal for in and around a small to medium sized home. the portable chime unit enables you to place anywhere around the home whilst the plug-through means no replacement of batteries and allows you to still use the socket for other electrical products; for example a vacuum . This kit has a 1year guarantee as well as a memory function so that once installed it will never have to be re-learnt even if its unplugged and then replaced. Chime unit supports upto 6 pushes.
The Byron BY323 Wirefree Port & Plug Through Kit has a choice of 4 melodies. It has an operating distance of 60m. The plug-through feature means that no socket is lost - another mains powered object can be powered by plugging into the chime.
No loss of socket.
Self learning.
Portable chime requires 3 x AA batteries (not included).
Push requires 1 x CR2032 battery (included).