Since 1987, ONICON has been an industry leader in high quality, custom calibrated flow instrumentation for water, steam, gases and thermal energy. ONICON is a service oriented organization with an unsurpassed commitment to customer satisfaction. ONICON continues to have a strong reputation for product excellence and superior customer support. 

ONICON’s product offerings include:

Air Monitor has been delivering airflow measurement solutions since 1967. They are the premier solutions provider for the Commercial HVAC, Industrial Process, and Power Generation markets. Air Monitor is the only dedicated airflow solutions provider with expertise in differential pressure and thermal dispersion measurement technologies. Both technologies are offered because they believe it is important to apply the correct technology to each application. 

State-of-the-art Photoacoustic Infrared technology delivers maximum accuracy & sensitivity. Our Experience Is Your Gain: With experience extending back to the 1988 Montreal Protocol, no other fixed monitoring system manufacturer can claim a greater history dedicated to the research, manufacture, sales and service of refrigerant gas monitoring systems.

Today, the Thermal Gas Systems Haloguard® product brand has come to mean proven reliability worldwide - designed and constructed to withstand tough mechanical room requirements. We invite users at all levels, including System Engineers, Mechanical Contractors, Facility Managers, Chiller Equipment Manufacturers and Distributors to experience our personalized customer service and support.

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.

We offer a variety of sensor technologies that detect many different types of hazardous gases in a wide range of applications. Common gases are: Carbon Monoxide, Carbon Dioxide, Nitrogen Dioxide, Nitric Oxide, Ammonia, Chlorine, Ozone, Oxygen, Refrigerants and combustible gases like Methane, Hydrogen and Propane. Applications include commercial, institutional, municipal and light industrial markets worldwide. Many applications are for vehicle exhaust, but areas of specialization include refrigeration plants, indoor swimming pools, water treatment plants, ice arenas, wineries, airports, hotels, fish farms, battery charging rooms, food processing plants, and more.