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.

Over the years, a wide variety of electrical meters has been developed to assist with monitoring and troubleshooting electrical systems. Let's take a look at some of the more common metering devices.

A permanently installed, comprehensive metering system that is layered within a facility can provide real-time information that will allow you to respond more quickly to undesirable system performance ...

There is a basic method for measuring high-frequency power using a power meter and power sensor (Fig. 1). The power sensor converts high-frequency power to a dc or low-frequency signal that the power ...

Ageing power quality meters create blind spots in modern electrical systems. Here’s why upgrades and retrofits now matte ...

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 ...

As USB-C PD becomes more and more common, it’s useful to have a tool that lets you understand exactly what it’s doing—no longer is it limited to just 5 V. This DIY USB-C PD tool, sent in by [ludwin], ...