The 2301L is a single phase Power Analyzer. The 2301L has 9 current ranges derived from 3 internal shunts. The 2301L low current shunt has ranges of 0.2, 0.5, and 1 Amps. The 2301L medium current shunt has ranges of 2, 5, and 10 Amps. The 2301L high current shunt has ranges of 20, 50, and 100 amps. The 2301L has 4 voltage ranges of 50, 150, 300, and 600 volts. The 2301L features three LED displays showing voltage, current and calculated wattage.