KYORITSU 8309 Floating voltage can be measured *Floating voltage:

Floating voltage can be measured*Floating voltage:phase to phase voltage not grounded*KEW 5020-01:KEW 5020 logger with KEW 8309 (1 pce.)Max. input voltageAC 600Vrms(sin), 848.4VpeakInput systemDifferential input (can measure floating voltage)Output voltageAC 0~60mV (output/input: 0.1mV/V)Measuring ranges6~600VAccuracy (Frequency range)±1.0%rdg±0.1mV (50/60Hz)Operating Temperature and Humidity Ranges-10~50ºC, relative humidity 85% or less (no condensation)Input impedanceApprox. 3.4MΩOutput impedanceApprox. 180ΩLocation for useAltitude up to 2000m, IndoorsApplicable standardsIEC/EN 61010-1:2001 CAT.III 600V, pollution degree 2IEC/EN 61010-031:2002, IEC 61326 (EMC)Withstand voltage5350V (rms 50/60Hz) for 5 sec.between measuring terminal and enclosureDimensions87(L)×26(W)×17(D)mm (excluding protrusions)WeightApprox. 135gTotal lengthApprox. 2mOutput connectorMINI DIN 6PINAccessoriesInstruction manualOptional7185 (Extension cable)