Digital multimeters (DMMs), nowadays, are smart instruments with a wide range of possible capabilities. A basic meter could suffice for an electrician to make quick checks of voltage and resistance. A higher-end, more feature-rich DMM can also perform a breadth and depth of measurements that could streamline troubleshooting and diagnostics of even fairly unusual or obscure problems in a variety of application areas. Many capabilities are software based, with the programming to perform a specific application built into the meter.
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