Testing Services

Over 100 years of combined emissions testing expertise, delivering portable, in-use measurement solutions and engineering support to meet regulatory and performance testing needs.

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Automotive Testing Services

With decades of testing, and thousands of tests ran, we are here to tackle any challenge.

Knowledge

Sensor’s Testing Services team knows PEMS equipment and regulations inside and out! As manufacturers of PEMS, our expertise and relationships with regulators is of tremendous value to our testing services customers. We delivered and commissioned 400+ PEMS, with 2000+ modules, to more than 100 global customers, and we still support them today.

Experience

Sensor’s Testing Services team has been conducting in-use tests for over ten years on a wide range of applications. We have successfully completed:

Over 150 heavy-duty in-use compliance tests for most US-based engine manufacturers to meet EPA compliance requirements including report submissions
More than 1500 light duty in-use and R&D test routes for a range of automotive OEMs and suppliers.

Non-compliance in-use testing on everything from on-highway cars and heavy-trucks to trains, ferries, non-road construction equipment, snowmobiles, and more.

Accurate Emissions Measurements

Sensors' PEMS equipment uses the same technologies as found in certification grade test cells. We meet regulatory requirements for all current programs in the world and provide NIST traceable certificates for regulatory verifications upon request. All of our analyzers are insensitive to shock and vibration. They are also heated and compensated for altitude changes to at least 2400 meters, so changing environmental conditions are not an issue.

We measure the following emissions components:

Exhaust mass flow rate, from 1 liter to 18 liter engines. Compensation for pulsations (patent pending) for more accurate measurements on small engines
CO₂ up to 18% and CO up to 8%
NO up to 3000 ppm, and NO₂ up to 1000 ppm
THC and/or CH₄ using single or dual FIDs with vacuum controlled flame chambers stable to 2400 meters Particle number (PN) using CPC technology
Particulate mass (PM) using EPA approved system including gravimetric filters combined with real-time mass using Pegasor^®

Compliance Software Solutions

In addition to manufacturing the PEMS equipment that we use, we also design and produce the analytical and reporting software to go with it. We can customize any reports to your specifications.

US Heavy-Duty In-Use (HDIU) compliance analysis and reporting software
European RDE analysis and reporting software
European Heavy-Duty in-use conformity analysis and reporting software
Particulate mass (PM) using EPA approved system including gravimetric filters combined with real-time mass using Pegasor^®

Oil & Gas Testing Services

Our trusted partners specialize in conducting high-level LDAR services

From environmental testing services to remediation to proactive interventions, Montrose provides comprehensive, environmental consulting services that combine the consistency of a global presence with deep, local expertise regulatory insight.