Ambient air quality monitoring ensures workplace safety and regulatory compliance

Reliably monitor a broad range of gases

Help ensure ambient air quality for worker safety and regulatory compliance with reliable technology. We offer ambient air monitoring equipment that measures air quality, low and high levels of criteria pollutants, as well as other gases and toxins.

Ambient air quality monitoring equipment includes gas detectors and portable and personal instruments that monitor ambient air in the workplace to help detect the presence of toxic vapors and gases.

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Popular ambient air quality monitoring equipment
Featured ambient air quality monitoring categories

Nitrogen and Nitrous Oxide (NO-NO2-NOx-NOY-N2O) Monitoring

Measure nitrogen oxides (NO-NO2-NOx) in the emissions from a source, including nitrogen oxides in the air from sub-ppb levels up to 100ppm.

Sulfur Dioxide (SO2) Monitoring

Measure the levels of SO2 in ambient air down to 50ppt or measure high levels of SO2 from a source up to 10,000ppt.

Carbon Monoxide (CO) Monitoring

Measure a broad range of CO—from high levels of CO emission to trace levels in ambient air.

Ozone Monitoring

Measure the amount of ozone in ambient air with the dual-cell, UV photometric Thermo Scientific™ Model 49i Ozone Analyzer.

Methane and Non-Methane Hydrocarbons Monitoring

Make automated measurements of methane and non-methane hydrocarbons with the Thermo Scientific Direct Methane & Non-Methane Hydrocarbon Analyzer.

Ammonia (NH3) Monitoring

Measure ammonia (NH3) concentrations in ambient air with the Thermo Scientific™ Ammonia Analyzer.

Zero Air

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.

Personal and Portable Ambient Gas Monitoring

Our portable ambient gas monitoring range includes single instruments that accurately measure a variety of gases as well as an instrument that can quickly detect organic and inorganic compounds in demanding applications such as Method 21 monitoring and site remediation.

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.

Gas analyzer and system tips & tricks delivered to you monthly

NO, NO2 and NOx monitoring 

Here are 5 tips and tricks for measuring the amount of NO, NO2, and NOx using any of the Thermo Scientific™ Model 42i series of gas analyzers.  

Cold weather monitoring

Keep our Fast5 tips in mind for optimized performance and maximum uptime of your gas analyzers during cold winter months. 



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.