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Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.
On September 4, 1992, BRK recalled all hardwired smoke alarms under the series 1839I and 2839I due to testing programs determining that corrosion could form on the alarm horn's electrical contacts, causing the piezo to fail to make any noise. [6] In May 2006, First Alert combination smoke alarms were recalled due to draining batteries rapidly. [7]
Other important contracts undertaken by the company during the late 1950s included a smoke detection system at the BBC TV Lime Grove Studios in London, smoke detectors for the Bristol Britannia aircraft, CO 2 fire-fighting systems for a number of British Rail diesel locomotives, and supplying fire detection and CO 2 systems for Lloyd's of London.
Coded fire alarm pull station below a 10-inch (25 cm) bell. Magnetic smoke door holders and retainers are wall-mounted solenoids or electromagnets controlled by a fire alarm system or detection component that magnetically secures spring-loaded self-closing smoke-tight doors in the open position.
Kidde (/ ˈ k ɪ d ə / [2]) is an American multinational company that manufactures and distributes fire detection and suppression equipment, as well as smoke and CO alarm units. Kidde is one of America's largest manufacturers of smoke alarms [3] [4] and fire safety products. [5]
Cooper Wheelock does not manufacture fire alarm control panels (except for the Safepath Voice Evacuation System), [3] smoke detectors, or heat detectors. However, many fire alarm control panels are compatible with Cooper Wheelock's line of notification appliances and other products.