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.

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......

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

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......