HK OBD-DOC tech Co., Ltd is the professional manufacturer in auto diagnostic equipment developing and sales.As the one of top manufacturers in China, our products have been already sold to all of the world. With the experienced engineer team, HK OBD-DOC Tech Co., Ltd. is developing Benz , BMW, Audi, VW and other auto diagnostic equipments. Supply to agent, garage and OEM partners in wordwide. We are updating the technic and quality of the products all the time so as to be one of the leaders in auto diagnostic.