Critical Environment Technologies Canada Inc. (CET) is a leading manufacturer of gas detection systems and IAQ monitors for HVAC and other commercial and light industrial markets. Our gas detection systems provide continuous monitoring of hazardous and toxic gases to protect people and property. We offer quality gas detection instruments for almost any type of application in commercial, institutional, municipal and light industrial markets worldwide. Many applications are for vehicle exhaust, but areas of specialization include refrigeration plants, indoor swimming pools, ice arenas, greenhouses, wastewater treatment plants, wineries, airports, hotels, schools, fish farms, food processing plants and more. We offer a variety of sensor technologies that detect a wide range of different types of hazardous gases: Carbon Monoxide, Carbon Dioxide, Nitrogen Dioxide, Nitric Oxide, Ammonia, Chlorine, Ozone, Oxygen, Refrigerants and combustible gases like Methane, Hydrogen and Propane, and more. Our gas detectors come standard in water/dust tight housing with an interior copper coating to reduce RF interference and conform to CSA, UL, CE, EMC, FCC and IP54 standards. We are proud to offer a wide range of high quality, reliable gas detection products and unparalleled service & support. For more than 27 years CET has been the choice for hundreds of engineers, technicians & dealers, and thousands of their customers. Our mission is SAFER AIR EVERYWHERE.