What is the reason that the supermarket anti-theft device is not working properly?

What is the reason that the supermarket anti-theft device is not working properly?

Supermarket anti-theft device does not emit an alarm when the power is turned off? Of course not! What should I do when the supermarket anti-theft door rings? The supermarket anti-theft door refers to the electronic anti-theft door that is professionally used in supermarkets, shopping malls and other places. It is mainly used to prevent theft and protect property. However, it occasionally strikes, so what should we do? The next editor will analyze it for everyone, hoping to help everyone.
This result depends on several situations:
1. It may be a soft label affixed to the product, there is a mobile phone in the bag, and the signal is blocked due to the interference of the mobile phone.
2. The metal in the bag interferes with the signal.
3. The label is damaged.
4. The equipment fails.
When you find that the system is not working properly, you should first check whether the system power is normal: whether the power indicator on the board is on; whether the printed board fuse (5F1) is intact; whether the input power voltage is correct; whether the power wiring is open or short; external power Whether the adapter works normally; whether the power socket is securely in contact; whether the input voltage fluctuates too much.
If the jing light does not flash and there is no alarm sound when testing the label, first check whether the jing light and buzzer are well connected, and whether the jing light and buzzer are damaged. Check whether the antenna wiring port is loose or detached. If not, check the indicator light ALARM on the printed board. "On" indicates that the system has alarmed, but there is no alarm output. At this time, some circuit faults (component failure or damage) should be considered.
The introduction of the above editor is here. I believe that everyone has already understood it. If you have any other questions or are interested in our products, you are welcome to come to dianzi for inquiries, and we will serve you wholeheartedly.

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Hongwen Vehicle Industry is a modern enterprise specializing in the research and development, production, and sales of various automotive lighting fixtures and interior and exterior decorative parts, which has undergone more than six years of development. Our company has an elite team of professional R&D, production, and marketing talents, as well as advanced production and testing equipment in the industry.


Hongwen is committed to providing you with affordable and customized automotive accessories! We provide fog lights for various models and years, including Toyota Hilux Vigo and Toyota Hilux Revo.

The fog lights are installed near or slightly lower than the head lights. Fog lamps serve as road lighting and provide signals for oncoming vehicles in low visibility situations such as fog, snow, heavy rain, or dust.


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