What tool is used to check for potential voltage?

The use of a voltmeter is particularly suitable for checking for potential voltage because it is specifically designed to measure the electrical potential difference, or voltage, between two points in a circuit. A voltmeter typically has two probes that you place on the two points where you want to measure the voltage. The device displays the voltage level, allowing you to determine if the system is operating within the desired voltage range.

A multimeter is a versatile tool that can also measure voltage, but it can perform additional functions such as measuring current and resistance. While a multimeter can be used for this task, its broader capabilities mean it isn’t solely focused on voltage measurement.

An ammeter is designed to measure current flow in a circuit and would not provide any indication of voltage.

A continuity tester is used to check for the presence of continuity in a circuit, indicating whether a path for current flow exists. It does not measure voltage levels, thus making it unsuitable for this specific task.

In summary, the voltmeter is the most directly applicable tool for checking voltage, making it the correct choice for this question.