Thermo Scientific source gas monitoring systems are designed for highly precise and sensitive gas monitoring

Industry Solutions for Environmental Challenges

Our source gas monitoring systems help you project challenges and regulatory demands in tough conditions. Our emissions monitoring solutions are designed for highly precise, sensitive, and fast emissions and gas monitoring.

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Popular source gas monitoring products

Omni FTIR Multi Gas CEMS

Mercury Freedom System

Particulate Matter Continuous Emissions Monitoring System (PM CEMS)

Featured source gas monitoring categories

A range of customizable emissions and gas monitoring systems that help you comply regulatory guidelines while meeting your own specific requirements.

Accurately meet your single gas emissions monitoring needs with our line of single gas analyzers.

Support your emissions and gas monitoring operations with our line of Thermo Scientific™ emissions monitoring probes and controllers.

111iQ Series Zero air supply supply clean diluent air for spanning ambient air analyzersZero Air Analyzer

Generate pollutant-free zero gas from ambient air to allow for proper zeroing, and to provide clean diluent air for spanning ambient air analyzers.

Featured videos

SO3 Monitoring

Learn how to maximize the efficiency of Activated Carbon Injection (ACI) systems for mercury capture, minimize dry sorbent usage, and manage the occurrence of blue plume.

TEOM Reference Cycle

Discover how the TEOM acts as an internal mass reference calibration for the PM CEMS and how it can yield more accurate results.



Let us handle the repair or calibration of all your environmental process and monitoring products. We're happy to track the process from start to finish, including coverage verification, problem diagnosis, cost estimates, and repair costs.