DDS314 Engineering Standard：GB/T17215-2002;IEC1036-2000 Rated Voltage：110V 127V 220V 230V 240V Calibrated Current：5(20)A 5(30)A 10(40)A 15(60)A Accuracy Degree：1.0;2.0 Display Style：Electronic Counter Display Shape Measurement：172mm*113mm*63mm Characteristics: High accuracy,high sensibility and high relibility Long life span,low power consumption and multifunction No checkout in lifetime