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江西仪器厂研制生产的WS-1遥感预警仪1983年9月经江西省国防科学技术工业办公室和公安部门鉴定,已定型批量生产。本预警仪的最大特点是采用“断开式”和“感应式”两种传感器检测人体进入防范区的信息并通过无线电传输达到遥感目的。断开式传感器采用簧片或磁控开关装在门窗、箱柜上防范重要保护点;感应式传感器采用金属细线根据需要延伸15～100米,安装在墙壁、地板、天花板、门窗附近或其他空间。来犯者靠近防范区即刻感应报警,发出半分钟预警信号引起值班
Jiangxi Instrument Factory developed and produced WS-1 remote sensing early warning instrument in September 1983 by the Jiangxi Provincial Defense Science and Technology Industrial Office and the public security department identified, has been stereotyped mass production. The most prominent feature of the early warning device is the use of “broken ” and “inductive ” two kinds of sensors to detect the body into the precautionary area of information and through radio transmission to achieve remote sensing purposes. Disconnected sensors with reed or magnetic switch installed in the windows and doors, cabinets to prevent an important point of protection; inductive sensors using thin metal wire as needed to extend 15 to 100 meters, installed in the walls, floors, ceilings, doors and windows or other space . The offender immediately senses the alarm near the precautionary area and issues a half-minute warning signal to cause his duty