What device can measure both current and voltage?

A multimeter is a versatile instrument used in electronics that can measure multiple electrical properties, including both current and voltage. It typically combines the functions of an ammeter and a voltmeter, allowing users to perform a variety of measurements without needing separate devices. This feature is especially useful for troubleshooting electrical circuits, as it enables the user to assess both the voltage across a component and the current flowing through it in one piece of equipment.

In various applications, having the ability to switch between measuring voltage and current makes the multimeter invaluable for engineers and technicians. Users can easily toggle between settings, usually through a dial or digital interface, making it convenient for tasks ranging from simple circuit tests to complex diagnostics.

While an ammeter measures only current and a voltmeter measures only voltage, a multimeter encompasses both functions and often includes additional capabilities such as measuring resistance and continuity, further enhancing its utility. An oscilloscope, on the other hand, is primarily used for visualizing voltage signals over time rather than directly measuring current.