A multimeter is a multiple range test instrument that measures voltage, current, and electrical resistance. It was invented in the 1920s to combine the voltmeter and ammeter into one instrument. There are two basic types of multimeters. One type has a...

A multimeter or a multitester is an electronic measuring instrument that combines several functions in one unit. The most basic instruments include an ammeter, voltmeter, and ohmmeter. Analog multimeters are sometimes referred to as "volt-ohm-meters",...

Byline: Dan Anderson When electrical systems on modern farm equipment go on the fritz, it's often due to incorrect voltage, too much resistance or lack of continuity in a circuit. A digital multimeter-also called a volt-ohm meter-checks voltage, measures resistance and detects...

Byline: Dan Anderson We've all done it: brushed a bare electrical wire against nearby metal to see if electricity is present. It's a risky diagnostic maneuver. Sparking a wire risks blowing a fuse, tripping a circuit breaker or melting down one of...