Specificationhttp://www.m-r-c.co.il/Media/Uploads/TES3060-3063OPR.pdf Product Description :Features:EN61010-1600V Installation Vat IiiPollution Degree 2True power / Apparent Power / Power Factor, True RMS V, A, W3 phase AdaptorRS-232 Interface to talk with PC1600 point Data loggerPerformance Characteristics of the TES-3060Form Factor HandheldType Clamp-On MeterTrue Rms (?) NoMinimum Frequency 1 kHzMaximum Frequency 300 kHzFrequency Accuracy 0.5 %AC Volts Minimum Range 600 VAC Volts Maximum Range 600 VAC Volts Basic 1 Year Accuracy 2 %AC Current Minimum Range 1000 AAC Current Maximum Range 1000 AAC Current Basic 1 Year Accuracy 2 %DC Volts Minimum Range 600 VDC Volts Maximum Range 600 VDC Volts Basic 1 yr accuracy 0.75 %DC Current Minimum Range 1000 mADC Current Maximum Range 1000 ADC Current Basic 1 yr accuracy 2 %Resistance Minimum Range 10 kOhmResistance Maximum Range 10 kOhmResistance Basic 1 yr accuracy 0.5 %อ่านเพิ่มเติม