The working principle of the supermarket anti-theft system is: attach an electronic anti-theft tag to the goods that are small in size, large in value and easy to be stolen, and there is an anti-theft door at the exit of the mall. When the thief steals the goods with the tag through the inspection door, he will immediately call the police (like the boarding check at the entrance of the airport), while the normal shopping will make the tag invalid and will not call the police when passing the cashier. For supermarkets and clothing stores that often lose goods, Franchise stores and other business places can greatly reduce losses

The supermarket anti-theft door has the exclusive multi-channel online synchronization technology in China, and each channel can alarm! Strong resistance to metal shielding; Adopt CPU central integrated processing system and phase-locked three-loop synchronous recursive filtering technology; By adopting high-precision integrated circuits, the actual effect of high alarm and no false alarm is achieved, and the equipment installation distance can reach 180 cm; The industrial design concept is introduced for the first time in China. The frame is made of aluminum and titanium alloy, and the appearance design is elegant and modern, beautiful and generous; In case of frequency deviation, the system can automatically open and close the working state.