... digital electronic coulometer,can measure voltage , current ,active power, reactive power ,apparent power ,PF,Kwh,Hz EU9 Series digital Kwh meter / ... , can measure voltage , current ,active power, reactive power ,apparent power ,PF,Kwh,Watt, Hz1) Power supply: AC/DC 100-240V2) Available for ... lines; for EU9 three lines.8) Accuracy: ±0.5% F.S± 2digits9) Input range: voltage: AC6-450V, Current: AC0 ...