What tool is typically used to measure voltage in a circuit?

A digital multimeter (DMM) is the most common tool used to measure voltage in a circuit. It provides accurate readings of electrical values, including voltage, current, and resistance. DMMs can measure both direct current (DC) and alternating current (AC) voltage, making them versatile for various automotive electrical diagnostics. They are designed with probes that connect directly to the circuit, allowing the user to measure voltage at different points and ensure that the electrical system is functioning correctly.

Other tools mentioned, while useful for specific applications, do not primarily serve the function of measuring voltage. A clamp meter is typically used to measure current without breaking the circuit, while an oscilloscope captures and analyzes waveforms, which is more complex than straightforward voltage measurement. A wire stripper, on the other hand, is a tool for removing insulation from electrical wires and has no measurement capabilities. Hence, the digital multimeter stands out as the appropriate choice for measuring voltage.