Critical Environment Technologies

Critical Environment Technologies is a leader in the design, manufacture & service of gas detection and indoor air quality systems. We’ve developed more than 100 different products that are sold in all states & provinces and can be found in more than 20 countries globally. Ongoing product development ensures our equipment is at the leading edge of a rapidly evolving space. We maintain a strong commitment to customer satisfaction, health, safety and environmental protection.

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Why CET?

  • Safe: Experts in Gas Detection
  • Reliable: Products That Just Work
  • Service: Leading in Customer Support
  • Simple: Easy to Install & Maintain

Latest from CET

Introducing ChillSense, BoilerSense, and ParkSense: CET’s Targeted Compliance Solutions for Safer Buildings

Navigating gas detection regulations can be complex. CET makes it simple with our Sense Series of compliance solutions: ChillSense™, BoilerSense™, and ParkSense™—each tailored to specific applications and regional codes.

Manufacturer Recommendations for Testing and Calibrating CET Gas Detection Systems

Regular maintenance and inspection of the gas detection system helps identify and correct problems before they escalate and lead to false readings or missed detections.

The Advantages of Infrared Refrigerant Gas Sensors over Solid State Sensors

Infrared refrigerant gas sensors offer a powerful combination of accuracy, reliability, and low maintenance, making them an excellent choice for modern HVAC and refrigeration systems.