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

Industry solutions for environmental challenges

Our stack emissions monitoring system helps you comply with demanding regulatory requirements in challenging monitoring conditions. For manufacturers and industrial plants, successfully complying with regulations requires equipment with advanced technology and maximum dependability.

Featured source emissions monitoring categories and resources

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

Our stack emissions monitoring system helps you comply with demanding regulatory requirements in challenging monitoring conditions. The environment is a continuous source of critical information. And with the new iQ Series of Gas Analyzers, so is your instrument.

Featured products

The Model 51i utilizes Flame Ionization Detector (FID) technology to provide a wide linear range and sensitive detection of organic compounds. Available in both high-temperature and low-temperature versions.

HDI-Chalkboard-Zero-Air-270x195

We offer systems for the reliable removal of carbon monoxide and hydrocarbons from filtered ambient air, as well as systems that generate ultra high purity zero air for analytical and process instrument needs.

HDI-Chalkboard-Gas-Calibrator-270x195

Calibrate ambient air quality monitoring and other gas monitoring instrumentation with gas calibrators which generate gas standards. Output is used to calibrate instruments that perform zero, precision, Level 1 span checks, audits, and multi-point routines in accordance with US EPA requirements.

HDI-Continuous-Emissions-Monitoring-Systems-270x195

Continuous Emissions Monitoring Systems can be required for any number of reasons for stationary source monitoring. Thermo Scientific offers a wide range of products and services to meet customers specific regulatory compliance and process control needs. Our experts have over 40 years experience in reading air permits, integrating solutions, and service in the field.

Learn more

Featured products and applications
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Mercury CEMS

The Thermo Scientific Mercury Freedom System is the global leader in mercury monitoring, with over 600 installs around the globe and products to suit individual customer and regulatory needs. The Mercury Freedom System has been installed around the globe in continuous operations with the highest uptime and availability of data.

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Total Reduced Sulfur (TRS)

The Thermo Scientific Continuous Emissions Monitoring System for Total Reduced Sulfur measures total reduced sulfur using field-proven, pulsed fluorescence technology packaged into a continuous emissions system suited for the application need. Originally, designed to meet the needs of the pulp and paper industry in complying with the regulatory requirements of 40 CFR part 60 as set forth by the U.S. EPA, the system meets a the needs of customers in different geographical regions for measuring TRS.

HDI-Alberta-CEMS-Code-Update-270x195
Alberta CEMS Code Update

The Alberta CEMS code established requirements for the installation, operation, maintenance and certification of continuous emissions monitoring systems. The original Alberta CEMS code was created in 1998, is currently being revised, and Thermo Fisher Scientific can help you with your compliance.

Learn more

HDI-Wallingford-Energy-Project-270x195
Selective Catalytic Reduction (SCR)

Thermo Scientific has the experience and technology available to help you comply with ammonia slip regulations, or measure to optimize your process for De-NOx in the SCR or SNCR of coal and gas power plants.

Learn more

HDI-iQ-Series-Generic-270x195
Accurately meet your single gas emissions monitoring needs with our line of gas analyzers

Our stack emissions monitoring system helps you comply with demanding regulatory requirements in challenging monitoring conditions. The environment is a continuous source of critical information. And with the new iQ Series of Gas Analyzers, so is your instrument.

Featured products

The Model 51i utilizes Flame Ionization Detector (FID) technology to provide a wide linear range and sensitive detection of organic compounds. Available in both high-temperature and low-temperature versions.

HDI-Chalkboard-Zero-Air-270x195

We offer systems for the reliable removal of carbon monoxide and hydrocarbons from filtered ambient air, as well as systems that generate ultra high purity zero air for analytical and process instrument needs.

HDI-Chalkboard-Gas-Calibrator-270x195

Calibrate ambient air quality monitoring and other gas monitoring instrumentation with gas calibrators which generate gas standards. Output is used to calibrate instruments that perform zero, precision, Level 1 span checks, audits, and multi-point routines in accordance with US EPA requirements.

HDI-Continuous-Emissions-Monitoring-Systems-270x195

Continuous Emissions Monitoring Systems can be required for any number of reasons for stationary source monitoring. Thermo Scientific offers a wide range of products and services to meet customers specific regulatory compliance and process control needs. Our experts have over 40 years experience in reading air permits, integrating solutions, and service in the field.

Learn more

Featured products and applications
HDI-Mercury-Freedom-System-270x195
Mercury CEMS

The Thermo Scientific Mercury Freedom System is the global leader in mercury monitoring, with over 600 installs around the globe and products to suit individual customer and regulatory needs. The Mercury Freedom System has been installed around the globe in continuous operations with the highest uptime and availability of data.

HDI-Total-Reduced-Sulfur-270x195
Total Reduced Sulfur (TRS)

The Thermo Scientific Continuous Emissions Monitoring System for Total Reduced Sulfur measures total reduced sulfur using field-proven, pulsed fluorescence technology packaged into a continuous emissions system suited for the application need. Originally, designed to meet the needs of the pulp and paper industry in complying with the regulatory requirements of 40 CFR part 60 as set forth by the U.S. EPA, the system meets a the needs of customers in different geographical regions for measuring TRS.

HDI-Alberta-CEMS-Code-Update-270x195
Alberta CEMS Code Update

The Alberta CEMS code established requirements for the installation, operation, maintenance and certification of continuous emissions monitoring systems. The original Alberta CEMS code was created in 1998, is currently being revised, and Thermo Fisher Scientific can help you with your compliance.

Learn more

HDI-Wallingford-Energy-Project-270x195
Selective Catalytic Reduction (SCR)

Thermo Scientific has the experience and technology available to help you comply with ammonia slip regulations, or measure to optimize your process for De-NOx in the SCR or SNCR of coal and gas power plants.

Learn more


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Get the spare parts you need, quick, easy and available 24/7. 
(United States customers only)

Get 10% off* when you use the promo code TFS2020
Expires 11/30/2020

*Can not be combined with other promotions or contracted discounts.

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environmental monitoring product support and spare parts

Product Support and Spares

Thermo Fisher Scientific Service Solutions are a vital component of your product’s lifecycle. These comprehensive solutions are exclusively created to drive optimal performance of your time-critical instruments.

When you partner with Thermo Fisher Scientific, you gain access to engineers trained within the same factory your instruments were manufactured. We only ship spare parts that were designed specifically for your instrument. Our expert service team is truly an integrated part of your product’s life cycle.

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