DW9 Digital power meter 1.Measure object : voltage, current, power, power consumption, power factor, frequency 2.Three phase 1.Features of DW9 three phase digital power meter : - Multi-function coulo-meter. - Measuring object: voltage, current, power, power consumption, power factor, frequency, active energy, reactive energy.- Current and voltage ratios set freely. - Up to 3 alarm relays, contact ...