An altimeter is a type of watch or device used to measure a person’s altitude, or the height above sea level. It is typically used for activities such as mountaineering, skiing, and aviation. The device measures the atmospheric pressure to determine the altitude, and can also be used to track changes in the pressure to forecast weather changes. Altimeters are often found in combination with other instruments, such as a compass and barometer, to give a more complete picture of the user’s environment.
