
Voltmeter
The voltmeter is a device used to measure the tension (or electric potential difference) between two points, including the unit of measure is the volt (V) 1.
The vast majority of current measuring devices is built around a digital Voltmeter, the physical quantity to measure being converted to voltage using a suitable sensor. This is the case of the DMM, which, besides offering the voltmeter function, has at least a converter voltage to operate in ammeter and a current generator continued to operate in the ohmmeter.