Portable Emissions Measurement Systems (PEMS)

Sensors' SEMTECH® product line goes wherever your vehicles go, for real-world emissions and fuel economy testing. SEMTECH® products are easy-to-install, easy-to-use, extremely rugged, and offer fast and accurate results. Whether you're conducting development testing or regulatory compliance testing, SEMTECH® products can help you get the results you need, fast.

DS+ PEMS on passenger car

PEMS Light-Duty

The SEMTECH® DS+ PEMS evolved from the LDV and was designed, developed, and manufactured for real-world emissions testing of light-duty vehicles. From automated calibration to automated report generation for regulatory compliance, and every stage in between, the system simplifies every aspect of real-world emissions testing.

DS+ PEMS on heavy-duty truck

PEMS Heavy-Duty

The SEMTECH® DS+ PEMS has been designed, developed, and built for the extremes of heavy-duty testing. The system is ruggedized and adaptable with the accessories needed for on- and off-road testing, such as: shock mount plate, long heated lines, larger exhaust flow tubes, and environmental protection.

truck on test cell dyno

Test Cell

Sensors' test cell product line enables the measurement of particulate number and mass, and a high-speed flow meter, for extremely accurate emissions measurements.

car at gas pump

Fuel Economy

Emphasis on the importance of real-world fuel economy measurements has never been greater. Sensors has developed a compact system to measure just that. By combining our high-speed flow meter with our fuel economy meter, the SEMTECH® FEM offers the most accurate real-world fuel economy measurements.


EOL / IM / Tuning

SEMTECH® EOL is an enhanced version of our end of line cart, integrating core SEMTECH® technologies into the basic system, which has been a standard for idle-state, loaded mode and transient emissions-based testing.