smart power meter WT104 is applicable for measuring AC,DC,AC&DC signals. smart power meterWT104 is applicable for measuring AC,DC,AC&DC signals. 1. Function for ... AC, DC and AC&DC.2 ... value.4. Auto range.5. Voltage: DC 600V/75V/35V AC 600V/75V/35V6. Current: DC 20A/2A/0.5A. AC 20A ...