Multimeter

Multimeter

An interactive animation representing a switched range multimeter. Drag the green handle to see what functions the different settings of the multimeter perform.

an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.

A multimeter or a multitester, also known as a VOM (Volt-Ohm meter or Volt-Ohm-milliammeter ), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter can measure voltage, current, and resistance. Analog multimeters use a microammeter with a moving pointer to display readings. Digital multimeters (DMM, DVOM) have a numeric display, and may also show a graphical bar representing the measured value. Digital multimeters are now far more common but analog multimeters are still preferable in some cases, for example when monitoring a rapidly varying value.

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