The electromagnetic wave system of the supermarket anti-theft door has the smallest label, and the price of the label is also cheap. It can be repeatedly demagnetized, but it is vulnerable to the influence of magnetic or metal substances and generate false alarms. The width of the protected exit is generally about 0.9 meters. The system will not affect magnetic objects (such as audio tapes, video tapes, magnetic cards).

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.