MSPEED is a sensor that measures the speed known in flight practice as the so-called Indicated Airspeed to Air (IAS) and indicates the speed of the model to ambient air. The information about this speed is very informative when controlling a model. You can easily determine the speed that corresponds to a stall and send an alarm signal if it falls below that speed. Another function of the sensor is a speed display, which gives the user a better overview of the model speeds. The user sets the desired speed and the step size; if this speed is exceeded or not reached, the user is informed acoustically of the change. To facilitate the reading of the current speed, a bar chart of the speeds is displayed in the introduction screen of the MSPEED sensor, which can be set by the user. The speed measurement is based on the principle of changing the dynamic pressure when the model speed changes. MSPEED consists of a pitot tube with static pressure measuring point and a relative pressure sensor, which is connected to the static pressure measuring point of the pitot tube by silicone hoses. With the help of the wireless DUPLEX system, the measured information from the MSPEED sensor is transmitted in real time to the JETIBOX, whose display informs the user about the current speed and the deviations from the set values.