RK9800N Series Intelligent Electric Quantity Measuring Instrument (Digital Power Meter), Hiki ke ana i ka Voltage, Current, Power, Power Factor, Frequency, Electric Energy and Other Parameters.RK9940N:0~600V 0~8A 7~40A 24kW RK9980N: 0~600V 0~16A 15~80A 48kW RK9813N: 0~600v 0~0.1A 0.08~2A 3.5~4W 3.5.