... , power factor and frequency.They are displayed by LED or LCD. Visual display , High accuracy, Reliable performance, Strong isolation, Anti-Vibration ... power,reactive power ,apparent power,power factor ,frequency.LED or LCD display , Local data queryCurrent Conversion Ratio is programmable.Support RS ... wiring diagram 96*96 THREE-PHASE THREE ROW AC VOLTAGE LCD DIGITAL COMBINATION METER RH-3UI3Y