A digital multimeter is a versatile electronic device used to measure various electrical properties, including voltage, current, and resistance. It displays readings on a digital screen, making it easier to read than traditional analog meters. Digital multimeters are commonly used in electronics, electrical work, and troubleshooting. These devices often come with additional features, such as the ability to test diodes and continuity, and some models can measure temperature. They are essential tools for professionals and hobbyists alike, providing accurate measurements for a wide range of applications in fields like electronics and engineering.