... voltage, current, power, power consumption, power factor, frequency 2.Three phase 1.Features of DW9 three phase digital power meter : - ... function coulo-meter. - Measuring object: voltage, current, power, power consumption, power factor, frequency, active energy, reactive energy.- Current and voltage ... can be set freelyMeasuring frequency0~2.5KHzAccuracyPower/Power factor/Voltage:±0.5%F.S;Current: ±0 ...