When using a security door, it will not only alarm the control tool, but also a series of metal objects, so many people will have an alarm prompt when they pass the security check. In fact, this is because we do not know much about the use of metal security gates, which has led to these situations.

　　The user also believes that the security gate can display the exact position of the human body through the image after detecting the prohibited items. Fang Ji unlimited explains the above customer's understanding here so as not to cause unnecessary misunderstanding in the later stage.


At present, the broad X-ray security door on the market refers to the metal detection anti-theft door (except for the latest millimeter wave human safety instruments and terahertz human safety instruments), that is, only items containing a certain amount of metal can be detected, but not at all Items carrying any metal components cannot be detected.
So far, metal detection security doors, including imported security doors, have adjustable detection sensitivity, and mobile phones and control tools can also be detected on the premise of excluding zippers, buttons, and small key chains. However, the principle of this exclusion is achieved by reducing the detection sensitivity of the security door rather than the intelligent identification technology, so when excluding larger metal objects, the security door cannot detect smaller metal objects.


The metal security door adopts the weak magnetic field induction technology, which has a certain induction ability to metal objects, magnetic objects, and strong wireless signals. These factors will have a certain impact on the normal operation of the security door. Therefore, installing security doors around the environment needs to avoid these factors presence.


At present, the security gate can send out sound and light prompts after detecting the metal objects carried by the human body, and can also display the height of the human body through the segmented LEDs on the left and right sides of the security gate, but it cannot display the human body position as accurately as the photo.