... intelligent panel meter, developed on ARM processor and used not only in the electricity transmission and power distribution system but also ... V2, V3, Vinavg, V12, V23, V31, VIIavgCurrent: I1, I2, I3, In, IavgActive power: P1, P2, P3, PsumReactive Power: Q1, Q2, Q3 ... .5%0~9999kVAHarmonic1.0%0~100%Dimension: Smart Power Manager multi function panel meter ,5 year waranty, CE approved, Modbus RS485, ...