Which instrument is commonly used to test voltage, resistance, and continuity in electrical wiring?

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Measuring electrical properties in wiring is typically done with a multimeter. This versatile tool can test voltage (both AC and DC) to determine if power is present and to compare potentials, measure resistance to check for open circuits or faulty components, and perform a continuity test that beeps when a complete path exists. That combination makes it the best choice for testing voltage, resistance, and continuity in electrical wiring.

Other tools don’t fit as well: a cable tester checks the wiring order and integrity of network or communication cables rather than electrical values; time-domain reflectometry locates faults along long cables but is more specialized and not a general-purpose tester of voltage or resistance; toner and probe kits help locate cables through tones but don’t provide voltage, resistance, or continuity readings.