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BW Technologies replacement sensors are ideal for repairing and maintaining detectors used in gas detection applications. These sensors are compatible for use with ammonia, chlorine, carbon monoxide, combustibles, hydrogen cyanide and hydrogen sulphide. Selected models, when exposed, are capable of resisting hydrogen to prevent further degradation of the detector. Choose from a wide range of these sensors, available in both Celsius and Fahrenheit reading scales on Raptor Supplies.