A temperature gauge is a device used to measure the temperature of a substance, such as air, liquids, or solids. It typically consists of a sensor that detects temperature changes and displays the information on a dial or digital screen. Temperature gauges are commonly found in various applications, including thermometers, ovens, and automobiles. These gauges can be analog or digital, with analog gauges using a needle to indicate temperature on a scale, while digital gauges provide a numerical readout. Accurate temperature measurement is essential in many fields, including cooking, weather monitoring, and industrial processes.