SPTC., LTD.Founded in May 7, 1999, SPTC LTD. has been exerting efforts to establish a new guidepost in an environmental field by measuring with Sowon Precision Technologies Corporation, which has been playing a pioneering role in an ambient air analyzing field for over the past 20 years. SPTC LTD. has been dedicating itself to R&D and manufacturing of the integration of Ambient Air Quality Monitoring System, the Meteorological Instrument, the Water Quality Monitoring System, the Data Logger, the Data Acquisition System, the Industrial Process Gas Analyzer and Rats Expelling Instrument. Recently we have come to complete the development of Automobile Exhaust Gas Analyzer(Model : Autochek 974/5, Autochek 982), Diesel Cars & Trucks Emission Smoke Analyzer(Model : Autochek Smoke), Gas Cooler, and Autochek Gas & Smoke. The products have been exported over both domestic and overseas market to acquire a good response. Based on our world-top quality and diversely accumulated installation experiences in environment-related fields, we are making our very best efforts to become one of the environment protection corporations.