DF-300V Handheld Three-phase Meter is high accuracy, high stability, low power consumption, easy to use. DF-300V Handheld ... three-phase AC voltage, current, phase between voltage, phase between current, phase between voltage¤t, frequency, phase, active power, reactive power, apparent power, power factor, vector sum ... init( { 'aImgSrc': aBigImageSrc } ); } )(); DF-300V Handheld Three-Phase Meter