A watt meter is a handy little device used for measuring the power in watts of any given circuit. Oftentimes you can find power meters in residential areas for determining the energy consumption and ...
I Used a Watt Meter to Save Money on My Electric Bill. It Was Weirdly Fun—and Enlightening.
You almost never hear of a DC Watt Meter – one just does some mental math with Volts and Amps at the back of one’s head. An AC Watt Meter, on the other hand, can by pretty useful on any workbench.