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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.
[7] [8] Wireless passive infrared sensors (PIR) may be used for burglary protection [9] with other devices used for light automation and temperature measurement. Other products are deployed as part of traditional alarm systems including interconnected smoke alarms , remotely controlled keypads, door and window sensors.
It connects and combines controllable devices made by different manufacturers such as motion detectors, smoke detectors, water detectors, wireless adapters for power outlets, door and window contact, temperature and humidity sensors, wireless switches, carbon monoxide sensors, thermostats, cameras, household appliances (e. g. washing machines ...
Replace smoke detectors at least every 10 years: Don't place your life in the hands of an outdated smoke alarm. For the most part, you can plan on replacing your smoke detector at least every 10 ...
Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices (pull stations). All components of a fire alarm system are connected to a fire alarm control panel. Fire alarm control panels are usually found in an electrical or panel room.
Ionization smoke alarms can quickly detect the small amounts of particles produced by fast-flaming fires, such as cooking fires or those fueled by paper or flammable liquids. A newer type of the smoke detector is the photoelectric smoke detector. It contains a light source, which is positioned indirectly to the light sensitive electric sensor.
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