Shenzhen Dajin Technology Co. Ltd. is a subsidiary of Shenzhen Fcar Technology Shares Co.,Ltd., professional in developing and producing automotive car accessories, including tire pressure decode, tire pressure diagnosis tool and universal programmable sensors. Shenzhen Fcar Technology Shares Co.,Ltd. is an innovative high-tech enterprise to integrate car diagnostic products research and development, production and sales service together. It is established in 2007 and listed on the new board in 2015. It's the global leader in diesel vehicle diagnostic apparatus. Relying on the more than 200 engineer strong R&D team and production platform, we make big breakthrough in a main technology as well as a number of invention patents and are moving to leader of car automotive electronic accessories step by step. QQr is the brand and trademark for smart TPMS diagnosis system, including car tire pressure decoder and universal sensors for original tire pressure replacement. Supply for the car factory for the car before market is supported, too. We are doing our best efforts to be a leader of automotive electronics accessories in the future. With the "artisans" spirit, we developed every product carefully, and create value for customers to achieve the win-win cooperation all the time.