A Digital Multimeter (DMM) is an electronic measuring instrument used to measure electrical values such as voltage (V), current (A), and resistance (Ω).

It combines the functions of a voltmeter, ammeter, and ohmmeter into a single device, with a digital display that shows the measured values in numbers for easy reading.

DMMs are widely used in electronics, electrical work, and troubleshooting because they are:

• Accurate

• Portable

• Easy to use

Most modern DMMs also include additional features such as continuity testing, diode testing, frequency, and capacitance measurement.