Sinocastel Co., Ltd (hereinafter referred to "Sinocastel") is a subsidiary of CASIL Telecommunications Holdings Limited (Hong Kong stock listed NO.:1185, a co-founder of China GPS association).Our company has been devoted to the application of GPS technology, RFID technology and wireless broadband access technology with the research and production of related products.

Carsun, established in 2005, is an ISO certified cable manufacturer and custom connector manufacturer for the electrical interconnection market in Shenzhen, China. Carsun′ Production facility covers an area of 2, 000 square meters. Our mission is to provide our customers with the best OBD connector assemblies, Smart EV diagnostic adapter cables, automotive diagnostic adapter cables, diesel heavy truck diagnostic adapter cables, motorbike diagnostic adapter cables, SCR system urea pump diagnostic cables, automotive ECU test cables, sensor test cables and much more. Our customers are mainly from automotive manufacturers, engineering companies, vehicle diagnostic tools, sensor switches, etc.

Nyitech is a high tech and R&D company who mainly produce OBD GPS tracker. We have focus on OBD GPS industrial for many years. And we have reached a new height this year, as we have crack most of the vehicle protocol, such as JOBD, HD dedicated protocol.