What Is a Multimeter? A multimeter is an electronic measuring instrument that is used to gauge volts, amps, and resistance from an electrical source. The most common automotive application for a ...

How do I measure alternating current voltage? Fortunately, with a little background information, multimeters are pretty straightforward tools that are surprisingly easy to use.

A multimeter is a handy way to measure electric currents, a must for any advanced toolbox.