With 12 LED digital display, can show the tube voltage, current and count value.
具有12位LED数码管显示，可分别显示电压、电流、计数值。
The average value of voltage can be measured point by point.
电压的平均值可以逐点测量。
The voltage effective value was figured out by mean square.
再通过其均方计算出电压有效值。
Data table display voltage and current value.
数字表显示电压、电流值。
Data table display voltage and current value.
数字表显示电压、电流值。
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