DifferentialVoltageDC+ACpk20KVBandwidth(50Ωload-3dB)20MHz(×600,×1500,×3000)CommonModeVoltageDC+ACpk20KVCommonModeVoltageRMSCATII/CATIII7KVAttenuation(Switchable)×300,×600,×1500,×3000InputR(EachInput)27MΩ+/-1%InputC(EachInput)2.5PF+/-2%MaximumOperationVoltage(DC+ACpk)‥+/-1.9KVatx300‥‥+/-3.9KVatx600‥‥+/-9.7KVatx1500‥‥+/-20KVatx3000‥CommonModeRejectionRatio(CMRR)60Hz:>20000:1100Hz:>2000:11MHz:>600:1Nose(Into50Ωload)3mVrmsInputImpedance(BetweenInput)54MΩ//1.3PFAccuracy(at20~30℃70%RHafter20minutes)+/-2%.MaximumOutputVoltage+/-7.0V.PowerSourceExternal6V~9VDC)