Ltd Add:No.3 Building,Tianfuan Industrial Zone, Lezhujiao Village, Xixiang Town, Baoan District, Shenzhen City, Guangdong Province,China   Technical Support   Burglar (or intrusion), fire, and safety alarms are electronic alarms   Burglar (or intrusion ), fire , and safety alarms are electronic alarms designed to alert the user to a specific danger. Sensors are connected to a control unit via low-voltage