Digital Air Speed Sensor - MS4525DO (Sensor w/ PT40 Pitot Tube)The Holybro Digital Airspeed Sensor has a very low offset, a high resolution and, best of all, does not suffer from the noise induced by long cables and offsets in the ratio metric output on other airspeed sensors. Supported on all Holybro Autopilot Flight Controller Boards with Ardupilot & PX4. Featuring a Measurement Specialties 4525DO sensor, with 1 psi measurement range (roughly up to 100 m s or 360 km h or 223 mp h), the Airspeed Sensor Kit