... impedance,Auto,wide range,high reliability, Digital MillivoltmeterDF1945 4 1/2 Millivoltmeters,Intelligent,High speed,High accuracy,High ... impedance,Auto,wide range,high reliability,1.DCV MAX Input:800VDCRangeAccuracyResolutionInput impedance200mV±0.05%± ... 05%±51mV10MΩ,30pF200V±0.05%±510mV10MΩ,30pF800V±0.1%±5100mV10MΩ,30pF2.ACV MAX Input:600VACRangeAccuracyResolutionInput impedance40Hz~ ...