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Constant potential electrolytic gas sensors have developed rapidly since the early 1980s. This sensor has high sensitivity, convenient use, low power consumption, good selectivity, and can detect carbon monoxide, methane, hydrogen sulfide,..

Gas sensors are mainly of semiconductor type, contact combustion type, chemical reaction type, light interference type, thermal conduction type, infrared absorption and dispersion type, and the like. Among them, semiconductor gas sensors ar..