Digital Power Meter (AC & DC model)

Digital Power Meter (AC & DC model) specification: 

•  Measure Vrms, lrms, W, PF/Hz;
•  Measure AC, DC, AC+DC;
•  Voltage range: AC: 5-600V, DC: 1-600V;
•  Current range: AC&DC: 0.005-20A;
•  High measurement accuracy and automatic range;
•  Accuracy: ± (0.4%reading + 0.1%range + 1digit);
•  RS232/RS485 communication port.