Pitot static testersare designed for maximum accuracy, reliability and portability. They come with easy to use functions that can simulate different types of aircraft conditions including flight maneuvers and ground operations. In some cases, the tester may be used in conjunction with other instruments such as an altimeter or airspeed indicator to further improve readings. 

The tester measures the difference between the air pressure from the Pitot tube, which is located on the leading edge of a wing, and static pressure from other sources. This information is then compared to data given by other instruments. The results are displayed in both graphical and numerical formats for easy interpretation and analysis.