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What does the supermarket door alarm work according to?

Principle of security soft label

The so-called acousto-magnetic is a resonance phenomenon generated by the principle of tuning forks. When the frequency of the transmitted signal (alternating magnetic field) is consistent with the oscillation frequency of the acousto-magnetic tag, the acousto-magnetic tag will cause resonance simil......

Reasons for buying acousto-magnetic anti-theft devices in supermarkets

There are many options for supermarket anti-theft alarms, which can be roughly divided into two types: acousto-magnetic alarms and radio frequency alarms.

Why can the clothing store anti-theft device and clothing anti-theft label realize the alarm?

Clothing anti-theft devices are generally installed at the entrances and exits of stores. The role of the clothing anti-theft device is that when someone carries unpaid clothing through the entrance and exit of the clothing store, the clothing anti-theft device will trigger an audible and visual ala......

What are the advantages of the supermarket acousto-magnetic anti-theft system

What are the types of clothing anti-theft labels?

We can often see hard anti-theft labels on clothing, bags, and shoes in clothing stores. This anti-theft label is a magnetic buckle used for clothing anti-theft.