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.

Priced under $200, the Watts up? PRO ES power meter plugs into a wall socket and monitors the power usage of any appliance plugged into it, logging up to 8,000 all-parameter data sets or 120,000 power ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Growing up, one of my father’s catchphrases was, “Turn off the lights when you leave a room; we’re not ...

With the ever-rising cost of electricity, we’re all getting increasingly sensitive about how much power our computers, televisions, appliances and other doohickeys are using — not just when we’re ...

Adafruit has this week announced the availability of a new Mini Power Meter complete with Voltage, Current, Watt’s mAh and mWh display, which is capable of supporting a wide variety of different ...