With over 20 years of experience in line of wired/wireless alarm system, surveillance system and video doorphone system, Shenzhen Security 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. Our plant covers 84300 square meters and staffs are up to 6300. Due to the strict management, advanced devices, effective production flute and professional staff, Shenzhen Security Group Co., Ltd has obtained the authentication of CCC and CE. So far, our products have been well ... more