A multimeter and its test leads allow electrical workers to reach into an energized panel, touch live circuit components with the end of the test leads, and capture electrical readings like voltage, ...

The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially a small generator that converts mechanical energy into electricity, bolted to the ...

Ever wondered how pros test auto wiring without stripping wires? This Harbor Freight kit helps you do it, like they do, without zapping yourself.

When you measure a voltage, how do you know that your measurement is correct? Because your multimeter says so, of course! But how can you trust your multimeter to give the right reading? Calibration ...