Digital Multimeter

A digital multimeter (DMM) is an electronic device that combines several measurement functions in one unit, primarily used to measure voltage, current, and resistance. Unlike older analog meters, DMMs feature a digital display for precise numerical readings. They often include additional functions like capacitance, frequency, and temperature measurement. Key components are the digital display, test leads, input jacks, and a rotary switch for selecting functions. DMMs are indispensable tools for anyone working with electrical circuits, from professionals to hobbyists, for troubleshooting, design, and testing.