The Wall Mounted Panic Alarm is also easy to see and convenient and easy to use. It is a highly visible bright red alarm, with an ultra bright red LED light which flashes every 30 seconds to indicate the 120dB alarm is sounding - ideal for anyone with hearing impairments. Activated by pulling the ripcord, it is re-set by re-attaching the ripcord or switching off the unit to silence the alarm. it features a battery test button, and an indicator light is located on the front. Includes wall bracket, 2 x fitted AAA batteries, 3 x fixing screws and wall plugs.