... PI & DAR Short-circuit current: 3 mA USB 2.0, Graphic Windows Software Application:This meter is an insulation resistance tester ... (PI), Dielectric Absorption Ratio (DAR), step voltage measures, temperature compensation, current leakage,log test (up to 8 hours), average value, etc ... Prober( Red,Black and Blue) 1 for each,each 3 meter.Data Analysis Software, 1 piece.Crocodile clip (red, black, blue), ...