Multimeter
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A multimeter is a measuring instrument that can measure multiple electrical properties. A typical multimeter can measure voltage, resistance, and current, in which case can be used as a voltmeter, ohm
Analog multimeter
Digital multimeter
1920s pocket multimeter
Avometer Model 8
Voltmeter
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A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. It is connected in parallel. It usually has a high resistance so that it takes
Multimeter
…that can measure multiple electrical properties. A typical multimeter can measure voltage, resistance, and current, in which case can be used as a voltmeter, ohmmeter, and ammeter. Some feature the measurement of additional properties such as temperature and capacitance. Analog multimeters use a microammeter…
Demonstration analog voltmeter
Two digital voltmeters. Note the 40 microvolt difference between the two measurements, an offset of 34 parts per million.