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Sensata Technologies Enhances Diesel Emissions Monitoring with New ePM Particulate Matter Sensor

Business Wire

  • Sensata's new electrostatic particulate matter (ePM) sensor supports real-time detection of particulate matter to enable OEMs to address evolving emissions monitoring requirements.

  • Designed to detect particulate matter concentrations as low as 10 mg/mi and support more stringent onboard diagnostics (OBD) thresholds.

  • Combines high-accuracy electrostatic measurement, continuous monitoring capability and tamper-resistant design to support OEM emissions compliance strategies.

SWINDON, United Kingdom, October 20, 2026--Sensata Technologies (NYSE: ST), today introduced its ePM electrostatic particulate matter sensor, a real-time particulate matter monitoring solution designed to enable automotive and commercial vehicle OEMs to address increasingly stringent emissions monitoring requirements. Using high-accuracy electrostatic sensing, the ePM sensor is designed to detect particulate matter concentrations in diesel exhaust systems and support faster monitoring response for onboard diagnostics and emissions compliance applications.

As emissions regulations continue to evolve globally, OEMs face increasing pressure to improve particulate matter monitoring performance, support more stringent OBD requirements and detect emissions system issues quickly and accurately. Reduced particulate matter monitoring thresholds, including those established by the California Air Resources Board (CARB), are increasing focus on monitoring sensitivity, response time and diagnostic performance. Current sensing technologies can encounter challenges meeting these demands, particularly as monitoring thresholds become more stringent.

Sensata's ePM sensor is designed to address these challenges through high-accuracy electrostatic sensing, continuous monitoring capability and a tamper-resistant design. Positioned downstream of the diesel particulate filter (DPF), the sensor provides continuous visibility into particulate matter emissions and can identify DPF malfunction when particulate matter concentrations exceed monitoring thresholds. The combination of sensitivity, response time and continuous measurement enables stronger diagnostic confidence as emissions monitoring requirements become increasingly demanding.

"As emissions monitoring requirements become more stringent, OEMs need sensing solutions that provide greater sensitivity, faster response and enhanced diagnostic confidence," said Markus Schwabe, Executive Vice President and President, Automotive, Sensata Technologies. "The ePM sensor expands Sensata's emissions monitoring capabilities with a solution designed to enable customers to address evolving regulatory requirements, strengthen emissions system diagnostics and prepare for future diesel platform demands."

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