... chip technology Digital Super scanning electron systems ,rf gate,gament gate,antenna shop library anti-theft ... of durable resistance Technical parameters and specifications: ModelEC502 RF Security gateFrequency8.2MHz ± 0.05MHzDimension1690*350*100mmScanning Frequency ... and high sensitiveDetection area≥ 95%Detection For RF Label1,000mmDetection For Hard Tag1,400mmSuitable forSupermarket , ...