Even if you just understand the basics of how circuits work, plus what voltage, amps and ohms are, you should be able to use a multimeter for simple diagnostic- and repair-related tasks.

Measuring Voltage With a multimeter, you can measure both AC and DC voltage—particularly useful for locating short circuits or determining if a rechargeable battery is holding a charge.

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, ...

Continuity Use a multimeter to test for a break in an electrical circuit. The meter measures resistance, and there are only two outcomes.