There are five major issues to be aware of when purchasing security doors: security door sensitivity, security door shock resistance, security door stability, security door detection effectiveness, security door qualification and certification. 1. Security door sensitivity. A pin can be detected in the middle of the door. Because the principle of the security door is that when the metal object passes through the magnetic field generated by the column on both sides of the door, causing the magnetic field to sense and alarming, this will inevitably lead to the phenomenon that the sensitivity will decrease from the two sides of the door panel to the middle area, that is, the two sides are close to the door panel. The sensitivity will be higher than the middle. Many security door manufacturers now claim to be able to detect a metal of a paper clip size, but in fact many manufacturers can barely measure it when they are close to the side panels, and there is no reaction at all. 2, security door shock resistance The door body cannot sing continuously when it is shaking. The stability and anti-interference ability of a security door directly affects the normal use of the security door. Some enterprises and users did not notice the relevant aspects when they purchased the security gates or were deliberately avoided by some manufacturers. As a result, the security gates purchased were very poor in stability, and the false positives continued to be affected by the wind and grass, which seriously affected the normal use. When the magnetic field oscillates, just someone passes, and it must be guaranteed to return to normal quickly, and can not always report falsely. 3, security door stability Carrying a pin should be heard once in the middle of the door, and it should not be missed and reported. A poor quality security gate will sometimes alarm when it is close to its sensitivity limit, sometimes not alarming, and placed in the three zones, showing the alarm in five zones. 4. Security check gate effectiveness The security gate has automatic statistics of “passing the number of people†and “number of alarmsâ€. If the number of people displayed does not match the actual number of people passing through, it may result in underreporting, which means that there are loopholes in the security inspection. A good security gate should be able to take one hundred inspections a hundred times. 5, security door qualification and certification The production of security gates must have a production license issued by the Ministry of Public Security, must hold the quality and safety inspection certificate of the public security department, and the export must pass the ce certification. Many do not have the relevant qualifications and certifications, and users must understand clearly before purchasing. Round folding table,High Quality Round folding table,Round folding table Details, CN ZHEJIANG HUZOLI METAL PRODUCTS CO.,LTD , https://www.zlplasticfurniture.com
