安检门是一种检测人员有无携带金属物品的探测装置，又称金属探测门。主要应用在机场，车站，大型会议等人流较大的公共场所用来检查人身体上隐藏的金属物品，如枪支，管制刀具等。当被检查人员从安检门通过，人身体上所携带的金属超过根据重量、数量或形状预先设定好的参数值时，安检门即刻报警，并显示造成报警的金属所在区位，让安检人员及时发现该人所随身携带的金属物品。
The security gate is a kind of detection device for detecting whether a person carries metal articles or not, also known as the metal detection gate. Mainly used in airports, stations, large-scale meetings and other public places with large crowds to check hidden metal objects on the body, such as guns, control knives www.Leaderhb.cnwww.shanghaijintong.cnand so on. When the inspected person passes through the security gate and the metal on his body exceeds the pre-set parameter value according to weight, quantity or shape, the security gate immediately alarms, and shows the location of the metal causing the alarm, so that the security personnel can find the metal articles carried by the person in time.