... performance, Strong isolation, Anti-Vibration.Performance CharacteristicsHigh-precision measure three-phase voltage,three-phase current,active power,reactive power ,apparent power,power factor ,frequency.LED or ... *7268*68RH-3UIF7YLCD80*8076*76Terminal diagramThe wiring diagram 96*96 THREE-PHASE THREE ROW AC VOLTAGE AND FREQUENCY LED DIGITAL COMBINATION METER RH-3UIF33