... 75dBmIntrinsic Uncertainty±0.13(3%)Linearity(dB)0.02Test UnitDb/dBm/xWCommunication interfaceRS232Resolution(dB)0.01Optical ConnectorFCPower SupplyAC90~260V,50Hz ... MeterMain Unit, External Detectors for N1 and N2, RS232 cable, Power supply Adapter, Software CD, Cotton Stick, User ... External Detectors for N1 and N2, RS232 data transfer cable, Power supply Adaptor, Software CD, Cotton Stick, User ...