A.Founded in1980 B.CE,ROHS,SGS,UL,KEMA,VDE,TSE,CB C.ISO9001,14001 D.manufacturer E. 430 employees,15000 square meter factory ... meters desined to measure and extensive reange of electrical and electronic parameters.Accuracy: Class 2.5Voltage: Single Phase:110V 220V 380V ... maximum-demand meters comply with accuracy class 3.0.The power factor meters and synchroscope meter comply with accuracy class 2.5. ...