... *350*100mm 3,Weight:19Kg 4,Can be use technica change frequency EAS SECURITY GATE (RF 8.2MHZ) EC502 ANTI-THEFT Microprocessor ... specifications: ModelEC502 RF Security gateFrequency8.2MHz ± 0.05MHzDimension1690*350*100mmScanning Frequency Offset± 500KHzModulation Frequency150,160,170,180Weight19kgPower≤ 15 WTemperature rang0°C ...