We are majoring in EAS (EM) system production with the advantages as follows: Checking and measuring by Multiple frequency points, eximious anti-jamming performance, Running steadily, no fault alarm, adopting the computer chip to control, modularization design, high sensitivity, no harm to people and no blind area. And it can combine into 1, 2, 3 or 4 channels. The material of inspecting frame is toughed glass imitating the structural type of RF system, which can be used in several areas. ABS frame with Embedded Crystal with beautiful look and polish craftwork. Crystal model is with high dignity, magnificence and pure transparence. The methods of alarm can be divided into sound alarm and sound and light alarm. Our EAS (EM) system is widely used in the libraries, book supermarket, clothes market, medicine shop, and etc.