With over 20 years of experience in line of wire/wireless alarm system, surveillance system and video doorphone system, Has already become the Leading manufacturer of safe and security products in China. As the biggest manufacturing base of safe and security products, our plant covers 84300 square meters and workers 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 marketed in 107 countries and we have successfully developed 32 projects for oversea customers on the basis of OEM and ODM service.