Beijing Century Super-Sensor (CSS.) Co, Ltd. is a specialized in development and production and sales of EAS system (EM&RF) . CSS has high-quality team of complex type of an interdisciplinary mastering computer software and hardware technology, electronic engineering, and with strong technical force in EAS system. The company has set up the specialized research and development laboratory in Beijing, establish overall cooperation with some universities ,introduce foreign advanced technology and combine one's own developmental research strength, The EAS system researched by CSS have characteristics of small blind areas, high sensitivities, and wide suitability, and high reliability. Some products have already used in many countries 。