Shenzhen Security Group CO, LTD is the biggest manufacturer of security products in China. We specialize in WIRE/WIRELESS, CCTV CAMERA, VIDEO DOORPHONE, etc.Great efforts have been making on advertising our products in the channels of CCTV-1,CCTV-2,CCtV-3,CCTV-4,CCTV-7. We have 7 branch offices-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. We have obtained the authentication of ROHS and CE. So far, our products (such as the models of SA-GSM, E, I, Q-16, Q-08 etc.) have been well marketed in oversea market, and we have successfully developed 32 projects for oversea customers on the basis of OEM and ODM service.