A Digital Multimeter (DMM) is a versatile industrial test instrument used to measure electrical parameters such as voltage, current, resistance, and continuity. It features a digital display for precise readings, auto-ranging capabilities, and additional functions like frequency, capacitance, and temperature measurement. Designed for reliability in harsh environments, DMMs are essential tools for electricians, engineers, and technicians in maintenance, troubleshooting, and quality control applications across manufacturing, energy, and automation sectors.