Specification: • Measure Vrms, lrms, W, PF, Hz; • Harmonic distortion analysis for voltage & current, display total harmonic and 0-50 times; • Component harmonic, selectable for absolutely or relatively harmonic display; • Voltage range:10.0-600.0V, Current range:0.010-20.00A, Auto range; • Accuracy: ±(0.4%reading + 0.1%range + 1digit); • Simultaneously display Vrms, lrms, W, PF value on 4 windows, suitable for production line; • Can test every kinds of curve; Print both data & curve; • Communication port for PC, run under Windows98 or Windows2000.