digital meter General SpecificationDimension: 120x120mm, 96x96mm, 80x80mm, 72x72mm, 48x48mm, 96x48mmInput standard range : ... AC100V, AC220V, AC380V, and others Current AC1A, AC5A, DC0-20 m A, and othersInput Frequency : 45~65 HzAccuracy : 0.5 or ... ,AC\DC80-270VPower supply power consumption: < 3VAModels: Ammeter, Voltmeter, Frequency meter, power factor meter, power factor angle meter and so on.