Shenzhen Tongzhou Testing Co.,Ltd. Founded in 2015, is an independent third-party comprehensive testing and certification laboratory integrating EMC, Safety, Radio frequency, energy efficiency and other testing. Tongzhou testing, with a registered capital of 4 million yuan, located in Haomai high tech park, Longhua District, Shenzhen. Since its establishment, the company has carried out effective system management for the laboratory in strict accordance with the international system standard of ISO / IEC 17025. With excellent testing and certification technology team and excellent instruments and equipment, the company has obtained more than 10 kinds of qualification authorizations such as CNAS of China, A2LA of the United States, IC of Canada etc. Can provide electromagnetic compatibility, electrical safety, radio frequency, energy efficiency and other related testing services for all kinds of electronic and electrical products, as well as more than 70 certification services in more than 50 countries or regions around the world, such as CE, FCC, CCC, CB, UL, ETL, SRRC, E-MARK etc.