When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

A specialized test gadget that tests continuity quantitatively in both AC and DC modes could prove to be an indispensible bench test instrument. This article describes such a continuity test set up, ...

When working on electrical projects around the home—whether that’s troubleshooting an issue with your HVAC system, repairing an appliance, or testing a car battery—a multimeter is essential. These ...

The ubiquitous diode—though you likely have a good understanding of this device, this primer of sorts acts as a quick-read guide, highlighting many of the essentials you need to know. The diode is a ...

Model 2606 clamp-on ammeter is a handheld, 4,000-count meter designed for field service, heating/refrigeration, industrial maintenance, and laboratory work. It has measuring ranges of 0-1,000-A ac/dc, ...

The fruit of a collaboration with Labsphere, the 2500INT is a custom-designed integrating sphere optical head that facilitates direct optical measurement of laser diode output power when used with ...