The PW3390 from Hioki E.E is a Power Analyzer with Basic Power Accuracy ± 0.04 to ± 0.05 % ( 45/66 Hz), Number of Channels/Elements 4 Channel, Current Range 0.1 to 20000 A, Voltage Range 15 to 1500 V, Bandwidth 0.5 to 200 kHz. More details for PW3390 can be seen below.