... 1.UI2012 Digital AC and DC Power Meter Voltage range: AC:5-600V, DC:1-600V UI2012 Digital AC and DC Power Meter• ... Measure Vrms, lrms, W, PF/Hz;• Measure AC, DC, AC+DC ... ;• Automatic selecting ,out of limit alarming, advance the work efficiency;• Voltage range: AC:5-600V, DC:1-600V. Current range: AC&DC ...