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It was an ionization detector powered by a single 9-volt battery. [10] It cost about US$125 (equivalent to $980.72 in 2023) and sold at a rate of a few hundred thousand units per year. [8] Several developments in smoke detector technology occurred between 1971 and 1976, including the replacement of cold-cathode tubes with solid-state electronics.
The three-man team (Burke-Roberts-Kimberlin) invented the first battery-powered smoke detector [3] [4] 1964- Began commercial manufacturing of the first battery-powered smoke detector; 1967- Pittway began manufacturing the alarms; 1974-Sears begins selling the BRK model SS-74R battery powered smoke alarm; 1992-Sold to T.H. Lee & Associates
A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings.
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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.
The PASS device is normally used in conjunction with breathing apparatus; it is a small, battery-powered device attached to the self-contained breathing apparatus (SCBA) harness which enables the firefighter to summon help by activating a loud, piercing electronic bleeper.
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