Airports , passenger stations, railway stations, and other public places have large human traffic and often do not send criminals to commit crimes, causing extremely bad negative effects on society. In order to increase the intensity of the case, security inspections have been stepped up in various important locations. The security check door is one of the most effective tools. It has been widely used in airports and other important security facilities and has been proven to be one of the most effective security tools.

What should you pay attention to when purchasing security doors ?

First, the manufacturers of security doors qualifications and related certification.

Before purchasing the security door, it is necessary to understand whether the purchased security door has a production license issued by the Ministry of Public Security. The production of the security door must have a production license issued by the Ministry of Public Security, and must have a certificate of quality and safety inspection of the public security department. The export must pass. CE certification. Many of them have relevant qualifications and certifications, and users must understand clearly before buying.

Second, the purchase of security doors must be considered for earthquake resistance.

How a security gate stability and anti-interference ability, directly affect the normal use of the security gate. Some enterprises and users did not pay attention to the relevant aspects or were deliberately avoided by the manufacturers when they purchased the security door, which resulted in poor stability of the purchased security door. If there is any sign of trouble, it will continue to be misreported, seriously affecting normal use. Based on the principle of magnetic field sensing of metal security gates, when the magnetic field of the security gate generates vibrations, false alarms are easily caused. A security door that passes the quality pass, even if no one passes, even if the magnetic field oscillates. Such as: strong winds blowing or flapping the door to cause the door to shake) should not be false positives. When the magnetic field oscillates, it is precisely when someone passes, and it is also necessary to guarantee a rapid return to normal, and it cannot always be a false alarm.

Third, the procurement security machine pays attention to stability.

Carrying a pin in the middle of the door should be heard once and it should not be missed and reported. Poor quality security gates will alarm when approaching their sensitivity limits, and sometimes do not alarm, and put things in the three areas, showing the alarm in five locations.

Fourth, detection effectiveness.

Security doors have automatic statistics "pass number" and "alarm times" function. If the number of people shown does not match the number actually passed, it may result in a missed report, which means there are loopholes in the security screening. A good security gate should be able to walk one hundred times and detect one hundred times.

Fifth, security door procurement should pay attention to sensitivity

A pin can be detected in the middle of the door. Because the principle of the security door is that when a metal object passes through the magnetic field generated by the columns on both sides of the door, it will cause magnetic field induction and alarm, which will inevitably lead to the phenomenon that the sensitivity will decrease from both sides of the door panel to the middle zone, ie, both sides close to the door The sensitivity is higher than in the middle.

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