What is a digital multimeter

Digital multimeter, a multi-purpose electronic measuring instrument, generally includes functions such as ammeter, voltmeter, ohmmeter, etc., sometimes also called multimeter, multimeter, multimeter, or triple meter.
Digital multimeters are suitable for portable devices for basic fault diagnosis. There are also devices placed on the workbench, and some resolutions can reach seven or eight digits.

A digital multimeter (DMM) is an electronic instrument used in electrical measurements. It can have many special functions, but the main function is to measure voltage, resistance and current. Digital multimeter, as a modern multi-purpose electronic measuring instrument, is mainly used in physical, electrical, electronic and other measurement fields.