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Overview

Wenzhou Osmark Sensor Co., Ltd

Address

Wenzhou Osmark Sensor Co., Ltd Wenzhou Ouhai District
Dongfang South Road No.38
325000
China

Contact

About us

Wenzhou Osmark Sensor Co., Ltd. is a national high-tech enterprise based in the National University Science Park of Wenzhou, Zhejiang. Since 2006, we have specialized in the R&D, production, and sales of oxygen sensors for motor vehicles. Our product range includes thimble, planar, wide-band, and A/F ratio sensors—covering over 1,800 models and serving markets in North America, Europe, the Middle East, and more.

We’ve built a complete original sample database to ensure product-to-vehicle accuracy and hold over 10 patents for sensor core technologies. With full in-house manufacturing capabilities and advanced equipment, we also provide custom development based on client samples and specifications.

In 2014, we developed the core technology for wide-band sensors, recognized in 2016 as a major tech project in Wenzhou. Backed by a skilled team and IATF 16949 certification, we pursue excellence with a “craftsman spirit” to create lasting value for customers.

More about us

Wenzhou Osmark Sensor Co., Ltd. is a national high-tech enterprise located in the National University Science Park of Wenzhou City, Zhejiang Province. We are committed to the research and development, production, and sales of high-performance oxygen sensors for motor vehicles. Since our founding in 2006, we have focused on developing the core components of automotive oxygen sensors. With over a decade of dedicated innovation, we have built a comprehensive original sample database, providing essential data support for product development and ensuring a precise match between our sensors and specific vehicle models. Today, our product range includes thimble-type oxygen sensors, planar oxygen sensors, wide-band oxygen sensors, and air-fuel ratio (A/F) sensors—covering over 1,800 models to meet the needs of markets in North America, Europe, the Middle East, and beyond. Osmark has mastered the complete manufacturing technology for all core components of oxygen sensors and holds more than 10 patents. With strong independent R&D and design capabilities, we are also able to develop customized products based on customer samples and requirements. Our facility is equipped with advanced full-process manufacturing equipment, including plasma spraying systems, cold and warm isostatic press machines, automatic coating and casting equipment, precision high-temperature furnaces, screen printers, ceramic slicers, and automated testing systems. In 2014, we successfully developed the core technology for wide-band and A/F ratio oxygen sensors—achieving a leading position domestically. In 2016, our wide-band oxygen sensor manufacturing project was recognized as a major science and technology initiative by the Wenzhou Municipal Government. Our professional team brings over ten years of experience in the R&D and manufacturing of oxygen sensors. Over 30% of our employees hold college degrees, and R&D personnel account for 20% of our workforce. A healthy corporate culture and a strong technical foundation have laid the groundwork for our long-term development. Osmark has passed the IATF 16949 quality management certification. Guided by the quality policy of “Doing every detail well to improve customer satisfaction,” we integrate the spirit of craftsmanship into every aspect of our operations. Through dedication and pursuit of excellence, we continuously strive to realize our own value and create greater value for our customers.

Keywords

  • Motorcycle oxygen sensor
  • Oxygen sensor
  • Lambda sensor
  • NOx sensor
  • Exhaust sensor