Digital multimeters, a kind of multi-purpose electronic measuring instrument.It usually include Spectrum Analyzer and other functions.
Some Digital multimeters used for basic troubleshooting of portable devices,Also there are placed on the bench device, and resolution can reach seven or eight.
Digital multimeter is used in electrical measurement of electronic equipment which also include Signal Generator.It can have many special functions, but the main function is to measure voltage, resistance and current, DMM, as a modern multi-purpose electronic measuring instruments, mainly for the physical, electrical, electronic and other measurement areas.

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