harmonic meter 1.CCC CE approved 2.AC input and AC output 3.low price with high quality Harmonic meter Measure all the electric quantity such as U, I, P, Q, PF, F Two energy pulse outputs RS-485 communicationHarmonic MeterFunctionsFunctionPD194Z-9HYReal Time MeasurementU√I√P,Q,PF√F√Energy MeasurementActive Energy√Reactive Energy√Bidirectional Measurement√Harmonic MeasurementTHD√Component-Energy ...