Pressure Altimeter

A pressure altimeter is an instrument used in aircraft to measure altitude based on atmospheric pressure. It works by sensing the surrounding air pressure; as altitude increases, air pressure decreases. The device then converts these pressure readings into an altitude reading, allowing pilots to determine their height above sea level. It’s calibrated to standard pressure at sea level, so changes in weather conditions require adjustments to maintain accuracy. This tool is essential for navigation and safe operation, especially when visual cues are limited, helping pilots maintain correct altitude during flight.