Shenzhen Security Group Corp., Ltd (SSG) is the leading manufacturer of surveillance equipments and alarm systems in China, and one of the major alarm system suppliers and professional CCTV camera factories in the world. Our plant covers 84300 square meters and staffs are up to 6300.We pride ourselves in excellent alarm system OEM and ODM security services, since we have successfully completed many security projects for our overseas clients. Our main Security & Safety products cover: GSM alarm systems, auto dial alarm systems, wireless alarm systems, alarm hosts, home burglar alarm systems, house alarm systems, security alarm systems, home alarm systems, smoke alarm systems, anti-theft alarms, bodyguard alarms, personal alarms, boat alarms, gas detectors, and fire alarms. We are also a large-size professional CCTV camera manufacturer, producing CCTV system products as follows: CCD cameras, dome cameras, IP cameras, IR cameras, box cameras, zoom cameras, CCTV security systems, CCTV security cameras, CCTV equipments, CCTV products, CCTV DVR, home CCTV, and CCTV accessories. In Door phone field, we design and produce the following products: video door phones, access control, door access control, intercom systems, door entry phones, door entry systems, video phones, doorbells, gate access control, and remote access systems. In car alarm system field, we provide: parking sensors, auto dial car alarm, one way car alarms, shocking sensor, trunk release, car security alarms, GSM car alarms, automobile security, automobile alarms, car reversing sensors, remote engine starters, SMS car alarms, car starters, central locks, window closers, window powers, car tracking, GSM trackers, vehicle alarms, positioning trackers, navigation, GSM auto alarms GSM alarm systems, pager car alarms, GPS tracking , cellular alarm systems and various car accessories