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2. Ionization chamber - Wikipedia

   en.wikipedia.org/wiki/Ionization_chamber

   The ionization chamber is the simplest type of gaseous ionisation detector, and is widely used for the detection and measurement of many types of ionizing radiation, including X-rays, gamma rays, alpha particles and beta particles. Conventionally, the term "ionization chamber" refers exclusively to those detectors which collect all the charges ...

3. Kidde - Wikipedia

   en.wikipedia.org/wiki/Kidde

   Website. www.kidde.com. Kidde (/ ˈkɪdə / [1]) is a brand subsidiary of Carrier Global 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 [2][3] and fire safety products. [4] Kidde is headquartered in Mebane, North ...

4. Aspirating smoke detector - Wikipedia

   en.wikipedia.org/wiki/Aspirating_smoke_detector

   A TOP-SENS2 ASD unit made by Wagner (Germany) An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke. [1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by ...

5. Smoke detector - Wikipedia

   en.wikipedia.org/wiki/Smoke_detector

   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 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary. Smoke can be detected either optically (photoelectric) or by physical ...

6. Carbon monoxide detector - Wikipedia

   en.wikipedia.org/wiki/Carbon_monoxide_detector

   A carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas to prevent carbon monoxide poisoning. In the late 1990s Underwriters Laboratories changed the definition of a single station CO detector with a sound device to carbon monoxide (CO) alarm. This applies to all CO safety alarms that meet ...

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