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Anonymous users2024-01-24Because the magnetic field of that bag is the same as the magnetic field of the supermarket, it will ring in that supermarket.
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Anonymous users2024-01-23According to the experience of Hangzhou Meisite Intelligence:
1. The anti-theft buckle will generally alarm when it passes through the detection door.
2. The unzipper will not alarm when it passes through the detection door.
Because the anti-theft buckle has a coil in it, it will alarm when it is sensed at the same frequency as the detection door, and the unbuckle is just a magnet with a relatively large magnetic force.
This is very simple, when you close the door, listen to whether it is the sound of the hinge of the security door, if you go to find a little lubricating oil or lubricating oil of the car, get it to the hinge, and then close the door back and forth a little more, let the oil seep in! If there is still a sound, you can continue to consult me!
Then such a problem is a false alarm (no one passes through the system to automatically call the police). >>>More
The principle is simple, but it cannot be said.
Don't think about it, supermarket anti-theft is a magnetic detection, tin foil can't shield magnetism, don't get yourself in.
Simple, now ask the master to change the key, not the original. If you can't charge it, find a decoration association or a consumer association, don't give it first.