... system to measure voltage ,current ,active power,reactive power , apparent power, power factor and frequency.They are displayed by ... Anti-Vibration.Performance CharacteristicsHigh-precision measure active power ,reactive power ,apparent power in three-phase networkLED or LCD display ... P81√ 2211√ 45*45 18.SINGLE-PHASE REACTIVE POWER MRTER ModelDisplay ModeFace Frame SizeHole SizemmmmRH-Q11Single Row ...