What tool is used to measure temperature in industrial settings?

The tool used to measure temperature in industrial settings is a thermometer. Thermometers are specifically designed to quantify how hot or cold a substance is, allowing operators to monitor temperature-sensitive processes accurately. They can come in various types, such as digital, mercury, or infrared, each suitable for different applications in an industrial environment.

The manometer is primarily used to measure pressure, typically in fluids or gases, which makes it unsuitable for measuring temperature. A barometer measures atmospheric pressure and is not applicable for temperature measurement. Similarly, a hygrometer measures humidity levels in the environment rather than temperature. Therefore, among these tools, the thermometer is the appropriate choice for accurately measuring temperature in various industrial contexts.