Dials are circular devices used to display information, often found on instruments like clocks, gauges, and speedometers. They typically feature a rotating pointer or hand that indicates a specific value on a marked scale. Dials can measure various parameters, such as time, temperature, or pressure, making them essential in many fields, including automotive and aviation. In addition to traditional analog dials, digital displays have become popular, providing numerical readings instead of a rotating hand. Both types serve the same purpose: to convey information quickly and clearly. Dials are integral to devices like thermometers, altimeters, and watches.