The Airspeed indicator shows the speed of the aircraft in relation to the air based on static and dynamic pressure transmitters. They are used on any type of aircraft, whether it is an airplane, helicopter, gyroplane or airship. When choosing the airspeed indicator, take into account the speed range in which the aircraft is moving, as well as the units: Kt, Km, Mph from which you want the device to be calibrated. You should also pay attention to the certificates that a given device must meet. You will find here both certified Airspeed indicators for aircraft as well as their uncertified counterparts.