How to solve the false alarm of supermarket and clothing store anti-theft devices？

Now the technology of supermarket/clothing anti-theft devices is becoming more and more mature, and the stability is getting higher and higher. (It is not ruled out that some manufacturers still use the technology of a few years ago, and the overall stability will be checked). Under normal circumstances, the early installation and debugging are very important. When the EAS anti-theft device is installed by the master, it is debugged well, and there will be almost no false alarm or missed alarm in the later stage.

If there is a false alarm solution in the later stage:

• 1. Check whether there are anti-theft tags around the anti-theft device? Most of the current equipment is a transceiver, and the left and right sides are detected at the same time. The tag signal is very strong and the detection distance will also increase.

Solution: Move the tag away and stay away from the anti-theft door.

• 2. For the acoustic magnetic system, the anti-theft devices of some manufacturers do not match the demagnetization phase, and there is mutual interference between them. There will be false alarms of decoders or anti-theft devices.

Solution: Replace a better decoder, or adjust the phase of the equipment to solve the problem. There is also a distance of five or six meters between the two to solve the problem.

• 3. The supermarket/clothing store next door also has other brands and models of anti-theft devices. Different brands and models of devices may interfere with each other.

Solution: Adjusting the phase of the device can solve the problem. Most acoustic and magnetic systems now automatically match the phase.

• 4. Check if there are other electrical devices next to it. For example, some switching power supplies will interfere with the equipment.

Solution: Remove the switching power supply, or replace it, or move it farther away.

• 5. Check the power connection method of the anti-theft device: Is it a separate power supply from the distribution box? Are there other large electrical devices or frequency conversion devices connected to the same power line?

Solution: Reconnect the power and eliminate the interference source. Or turn on and off all switches in the distribution box one by one to check whether a certain power supply interferes with the equipment.

The above methods can generally solve the problem. If it still cannot be solved, there may be a problem with the motherboard, and you need to contact the manufacturer to replace the motherboard.