Shenzhen Dajin Technology Co. Ltd. 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 commmercial vehicles, Fleet Management Products and LCD dashboard. Strong R&D ability with more than 200 engineers is required. More than 90 of them have master's degree. 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 technologically advanced automotive electronics products. The company has been a leading position in China with a number of national invention patents and all products past ISO/TS16949 system certification. Supply for the car factory for the car before market is also available, such as JAC. Dajin factory 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! Our 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. Our trademark is QQr. At the same time, we also provide customers with OEM and ODM services. Welcome all customers to visit our company and establish a long-term cooperation!