Shenzhen China-Top Security & Tech Co., Ltd., founded in 2005, is a sister company of Teams Electronic Co., Ltd., which is professional in security products developing and manufacturing. As one of the co-founders of China Security Association, China-Top Security & Tech has over 8 years' experience in GPS and LBS applications, Security video alarm system solutions (such as 3G video alarm system, Network phone camera alarm system, etc.), CCTV & DVR systems, IP network cameras and is engaged in ...