... / ZZero clearing 0Short-circuit zero clearing 0Range mode Automatic, manual ,Test portTwo ports 2Display LED display, frequency 4 digits, impedance ... 4 digits LED 4 4Test signal Test frequency Fixed frequency: 400Hz, 1kHz 400Hz-1kHzManual adjusting: 20Hz ... , 50mA, 10mA, 1mA, 0.1mACurrent precision +/-5%Impedance test range0.1Ω-20kΩPrecision+/-0.5% reading +/-1digitComparator PASS, ...