Wall mounted security alarmHighly visible colourPull ripcord to sound a 120dB siren and activate flashing lightSimply re-attach ripcord or switch off to silence alarmConvenient Has an ultra bright red LED light that will flash every 30 seconds to indicate the 120dB alarm is sounding, which is ideal for anyone with hearing impairments.A battery test button and indicator light is located on the front. Includes wall bracket, 2 x fitted AAA batteries, 3 x fixing screws and wall plugs.