Professional home alarm , CCTV, IP camera and Video Door Phone Manufacturer With over 20 years of experience in line of wire/wireless alarm system, surveillance system and video doorphone system, Shenzhen SSG medical care Group Co., Ltd. Has already become the biggest manufacturer of safe and security products in China. At present the Group consists of 7 sole subsidiaries including Shenzhen Weierying Electron Co., Ltd, Shenzhen Jinhuicong Technology Co., Ltd and Shenzhen Jinfuxing Co., Ltd etc.