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.
CONTACT USWhy 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.





