Celebrating 35 Years in Business!
Critical Environment Technologies

Critical Environment Technologies Canada Inc. (CETCI) is a leading global supplier of gas detection systems, including self-contained systems, controllers and transmitters, and Indoor Air Quality (IAQ) portable instruments. With ongoing product development, CETCI’s instruments are ensured to be leading edge.

Applications include commercial, institutional, municipal, and light industrial markets worldwide. Areas of specialization include parking garages, refrigeration plants, commercial swimming pools, water purification, arenas, wineries and breweries, waste water treatment, and many more.

CETCI gas detectors are used to detect many different gases. Some of the most common are Carbon Monoxide, Carbon Dioxide, Nitrogen Dioxide, Nitric Oxide, Ammonia, Chlorine, Ozone, Combustible Gases like Methane and Propane, Oxygen, Refrigerants and more.



Self-contained units and powerful controllers that can handle up to 128 channels.  From small mechanics garages to flammable storage warehouses, we have the right solution for you.

Gas Detectors

More than 10 models of transmitters to monitor more than 40 different gases. With standard, IP56, and explosion proof housings, CET has the solution for your next project.

Remote Devices & Peripherals

Remote displays, strobes, horns for a variety of different applications.  We’ll make sure your systems are compliant with all codes to provide a safe environment.


O’Dell Associates has the training and resources to keep your systems operational. We startup & commission EVERY new system we sell.  Calibration services are also available to ensure system functionality for its entire operational life.  Let us help keep you safe!

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O’Dell Projects with Critical Environment Technologies

For an HVAC solution that includes the best products in the industry, contact us today.

Note: Not all products are available at all our locations. Call now for availability in your area.

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