四窗口同時(shí)顯示:電壓、電流、功率、功率因數(shù)/頻率4display:V,A,W,PForHz電壓量程Voltage: 10.0-500V電流量程Current: 0.005-20A量程自動(dòng)切換Autorange精度Accuracy: (0.4%reading+0.1%range+1digit) Characteristics Specifications: 4display:V,A,W,PF/HzVoltagerange:10.0-500VCurrentrange0.005-20ARange