Company Profile

Factory Display

Headquarters - Shen Zhen Dajin Technology Co.,Ltd

Shenzhen Dajin Technology Co. Ltd. is a high-tech enterprise specialized in developing and producing automotive car accessories with QQr brand, including TPMS diagnostic tool, TPMS programmable sensor, Car and Truck aftermarket TPMS kit, Auto Diagnostic Scanner for cars, trucks and commercial vehicles, Fleet Management Products and LCD dashboard. 


We have strong R&D ability with more than 200 engineers. More than 90 of them have master’s degrees in Engineering background. We established Sun Yat-sen University laboratory with Sun Yat-sen University. And keep long-term cooperation with China Chinese Academy of Sciences, Shenzhen Advanced Technology Research Institute, and other well-known scientific research institutions at home and abroad to develop a series of technologically advanced automotive electronics products. The company has more than 300 employees, including 150 doctoral and master high-tech talent. Obtained more than 300 domestic and international invention patents, and passed the automobile quality system IATF16949 certification! Our technical strength is in the top three in the country!

Our Service and Strength

We established a factory in Suzhou, Anhui Province which is dedicated to the production & testing of products. With the possession of 20000 square meters modern standard workshop, a dust-free workshop and office. It has 2 Siemens patch lines and 2 fully automated sensor assembly lines. All equipment is at the highest level in China!

All products are made of automotive-grade components and parts according to automotive-grade standards, with first-class quality and first-class service! Mainly sold to Europe, the United States and other countries and regions. We are also a Tier One supplier of JAC, Chang An Automotive Corporation, GTMC and other well-known automobile manufacturers.