◆ 四窗口同时显示：电压(600V) ，电流(2A)，功率，功率因数/频率  
    4 display windows for V(600V), A(2A), W, PF/Hz
◆ 电压、电流总谐波，0~39次谐波及谐波频谱图 THD,0 to 39th harmonic components
◆ 精度Accuracy: ±(0.4% reading+ 0.1% range+1 digit)
◆ 打印所有数据和曲线，配电脑可显示所有数据和曲线
    Data and curves printable. All the data and curves can be displayed after being connected with PC