Multimeter

1. Multimeter is an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.
2. A multimeter is a measuring instrument that can measure multiple electrical properties.

A multimeter or a multitester, also known as a VOM, is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common than analog ones, but analog multimeters are still preferable in some cases, for example when monitoring a rapidly-varying value. A multimeter can be a hand-held device useful for basic fault finding and field service work, or a bench instrument which can measure to a very high degree of accuracy. They can be used to troubleshoot electrical problems in a wide array of industrial and household devices such as electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems.

Sources:

Google’s English dictionary by Oxford Languages https://languages.oup.com/google-dictionary-en/

Omega Company https://www.omega.com/en-us/resources/

New World Encyclopedia https://www.newworldencyclopedia.org/entry/