Gas Sensors. How Stuff Works

Gas Sensors are devices which detects the presence of gases in an area. These are used for safety purposes to activate alarm systems as warning measure or to shut down a machinery. Gas detectors are used to detect different kinds of gases like combustible, flammable and toxic gases. These are also find application in the detection of oxygen depletion in an area. As the gas sensors measure a particular concentration of gas, the sensor responds to a calibrated gas and serves as a point or scale. As the level of gas increases above the sensor’s calibrated level, the alarm will be activated. Individual sensors are usually used to detect particular gases, but sensors capable of detecting various kinds gases are also available.
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