What Trensor makes

Trensor designs and supplies pressure sensors, pressure and temperature combination sensors, transducers, pressure sensor modules, and pressure switches for vehicles and equipment. The company works across four core pressure-sensing technologies, thick film, MEMS, sputtered thin film, and SOI micro-melting, and designs its own patented ASIC chips, the signal-processing units at the heart of a sensor. Building all four technologies in house, rather than specializing in one or two as most sensor suppliers do, lets Trensor match a technology to an application across a wide range, from vacuum and micro pressures up to pressures above 30,000 psi. It positions itself as a Tier 1 and Tier 2 supplier to global OEMs and as a supplier to the global aftermarket.

The automotive line covers engine and powertrain (oil, fuel, manifold absolute, and transmission pressure), climate and thermal management (AC high side and low side, compressor and fan control, EV and hybrid battery cooling), chassis, suspension and safety (ABS brake, chassis control, power steering), and emissions and SCR systems (exhaust back pressure, EGR, turbo boost, and diesel exhaust fluid). Beyond cars, Trensor serves HVAC/R and appliance, industrial, marine, rail, off-highway equipment, and over-the-road truck and bus customers.

The aftermarket business

Trensor, LLC runs the group's North American commercial and aftermarket operation from Irvine, California, and is a member of MEMA, the Motor and Equipment Manufacturers Association, listed on the MEMA Aftermarket Top Suppliers List. Per its own account, the aftermarket unit reached start of production in 2012, became the largest global supplier of climate-control pressure sensors to the aftermarket by 2015, opened a direct-to-retail distribution channel in 2019, and by 2021 was distributing across five continents. In 2021 it launched the 3FP performance racing sensor brand, a direct-to-consumer line sold through a separate storefront. The company says it adds an average of 59 SKUs a year, many first-to-market or dealer-only parts, and describes its customers as private-label distributors who put their own brands on Trensor-built sensors.

Ownership and history

Trensor was founded in 2009. The manufacturing parent is Wuxi Leiden Electronics Co., Ltd., which operates under the Trensor Co., Ltd. name and describes itself as one of the few pressure-sensor makers in China to cover the full pressure range across all four core process technologies and to design its own ASICs. The group is venture-backed and closed a Series C round of nearly $14.5 million in April 2023 to fund technology development and international expansion. Trensor, LLC is the group's North American arm, headquartered at 9781 Irvine Center Dr in Irvine, California, with the company reporting more than 150 employees globally and a research and development team of full-time engineers.

The group's manufacturing footprint has expanded steadily. Trensor broke ground on a 200,000-square-foot plant in Wuxi, China in 2018 and planned series production there from around 2020. In May 2025 it broke ground on its first overseas factory, a roughly RM100 million plant at Penang Technology Park in Malaysia, expected to reach mass production in 2026 and to employ over 200 workers. One of its early product concepts, SensorCap, which integrates an AC pressure sensor into a receiver-drier access cap, was named by MotorTrend in 2017 as one of twelve future car technologies worth talking about.

Known customers

Trensor's customer list is mostly private, which is normal for a sensor supplier serving OEM programs and private-label aftermarket brands. The company's own materials name several relationships:

These are relationships the company states in its own published profile, not independently filed program records.

Sourcing evidence

Trensor appears in US customs bill-of-lading records with 85 sea shipments, the most recent dated February 18, 2026. The named foreign suppliers include Zhejiang Master Injection System, Cub Elecparts, and Rehan Industrial, a mix that fits a sensor business importing molded housings, components, and finished sensor product for North American distribution rather than a single-source reseller. Detailed year-by-year volumes are not drawn here, so no trade-trajectory grade is published for this profile.

Coverage caveats: these are US ocean-freight records only. Air, truck, and rail movements do not appear, some records name freight intermediaries rather than manufacturers, and product categories come from declared manifest codes, which are noisy. Absence of a record is not evidence of absence. For buyers weighing tariff exposure or nearshoring on sensor supply, the group's move to build capacity in Malaysia is worth noting.

Frequently asked questions

What does Trensor make?

Trensor makes pressure sensors, pressure and temperature combination sensors, transducers, pressure sensor modules, and pressure switches. It builds across four core sensing technologies (thick film, MEMS, sputtered thin film, and SOI) and designs its own patented ASIC chips. Product families cover engine and powertrain, climate and thermal management, chassis and safety, emissions and SCR, plus HVAC/R, industrial, marine, rail, and performance racing sensors under its 3FP brand.

Who owns Trensor?

Trensor was founded in 2009 and is part of the Trensor group, whose manufacturing parent is Wuxi Leiden Electronics Co., Ltd. (Trensor Co., Ltd.) in Wuxi, China. The group is venture-backed and raised a Series C round of nearly $14.5 million in April 2023. Trensor, LLC is the group's North American commercial and aftermarket arm.

Where is Trensor located?

Trensor, LLC is headquartered at 9781 Irvine Center Dr, Irvine, California 92618. Manufacturing runs through the group's plant in Wuxi, China, with a new factory under construction in Penang, Malaysia that is expected to reach mass production in 2026.

Is Trensor a MEMA member?

Yes. Trensor, LLC is a member of MEMA, the Motor and Equipment Manufacturers Association, and is listed on the MEMA Aftermarket Top Suppliers List. Its aftermarket business distributes sensors across five continents.

Who are Trensor's customers?

Most of Trensor's customers are unnamed, but its published company profile names supply relationships with Ford, Cummins, Valeo, Hanon Systems, and SAIC. It also supplies private-label distributors in the automotive aftermarket, who sell Trensor-built sensors under their own brands.

What technologies does Trensor use in its sensors?

Trensor works across all four core pressure-sensing technologies: thick film, MEMS, sputtered thin film, and SOI micro-melting. It also designs its own patented ASIC chips, the signal-processing units inside each sensor, which lets it match the right technology to each application from vacuum pressures up to more than 30,000 psi.

Last verified September 28, 2026. Is this your company? Request a correction.