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A gas detector is a device that detects the presence of gases in a volume of space. Gas detectors come in various form factors depending on the application. This includes handheld gas detectors, wall-mounted gas detectors, gas detectors with a built-in pump used with a probe, gooseneck gas detectors, and benchtop gas detectors.
The alarm points on carbon monoxide detectors are not a simple alarm level (as in smoke detectors) but are a concentration-time function. At lower concentrations, e.g. 100 parts per million (PPM), the detector does not sound an alarm for many tens of minutes. At 400 PPM, the alarm sounds within a few minutes.
For some gases, such as ethylene oxide, cross-sensitivity can be a problem because ethylene oxide requires a very active working electrode catalyst and high operating potential for its oxidation. Therefore, gases that are more easily oxidized, such as alcohols and carbon monoxide will also give a response. Cross-sensitivity problems can be ...
The Best Spot to Place a Carbon Monoxide Detector. Purchasing carbon monoxide detectors is only half the job. ... Carbon monoxide detectors should be installed between knee to head height on every ...
Here are our recommendations for the best carbon monoxide detectors. No living space should be without several of these inexpensive, lifesaving devices. Here are our recommendations for the best ...
Metal oxide chemiresistor sensors were first commercialized in 1970 [12] in a carbon monoxide detector that used powdered SnO 2. However, there are many other metal oxides that have chemiresistive properties. Metal oxide sensors are primarily gas sensors, and they can sense both oxidizing and reducing gases. [2]
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