Model W2508 Uni-Com 150m Extra Loud Ringing Doorbell with Extender and Brass Push This mechanical ringing door bell is specifically designed to be wall mounted and and has an internal hammer that hits the metal dome to create the traditional extra loud bell sound. The extensive wireless range of up to 150 metres means the bell can be fitted in any room or outside in the garage and shed to ensure a visitor is never missed. The surface mounted brass bell push is connected by a small length of wire to a Wired to Wirefee Extender which will send a wireless signal to the bell unit when the brass push is pressed. The extender is normally just inside the property but can be connected by a longer length of wire if neccessary

[ Click to Enlarge ] 150m range, Metal frames, ( thick walls and UPVC frames will reduce the operating distance). Extra Loud traditional ringing bell sound, 95dB Battery powered, 2 x LR14 (C-Type), - not supplied Extender Fixings included Surface mounted brass push button - no large hole required To Listen to Sound Samples, Click Below, Note the sound is louder than you hear on your computer: ... Instruction Manual 62325B.pdf Options Additional Bell UnitUnit : Click Here [ 62325Bx ] Additional White bell push : Click Here [ 10621 ] Specifications Dimensions - Dome 4" (100mm), Base 4.4" (110mm) Depth - 2.9" (73mm) Dimensions - Extender 24 x 38 x 95mm Dimensions - Brass Push, 74 x 30 x 20mm The bell is wall mountable only Batteries - Extender, 1 x CR2032 (supplied) - typical life 2 years Extra Loud, Sound Level dB@1M, 95db (Can be heard 115m away) Range 150m Batteries - Bell unit, 2 x LR14 (C-Type - not supplied) - typical life 3 years Operating frequency, 434MHz. Operating temperature range for all chimes and extender is -5°C to + 40°C.