Power factor meter PD7194H-5K1 X-Series digital power measurement table: Suitable for power grids, automation and control systems for ... of electrical parameters of current, voltage, frequency, power, power factor and with high accuracy, good stability, anti ... 10%Expansion: with the extended range of shunt or transformerAuxiliary power supply: AC220V ± 10%, or AC/DC85V ~ 270VPower consumption ...