Features: ASPD-4525 Digital Airspeed Sensor: This product is a digital airspeed sensor used to measure the air speed of aircraft. Wide compatibility: suitable for various flight controllers such as for F405-WING, F411-WING, and F722-Wing, and can be used for Remote Control FPVs racing drones. High precised measurement: With high-precised airspeed measurement function, it can accurately obtain the speed information of the aircraft in the air. Digital design: By using digital signal output, it effectively avoids interference problems that may be caused by analogue sensors, providing more stable and accurate measurement results. Low voltage operation: The product supports DC4~6V voltage input, adapting to the power requirements of different flight controllers, making it easy to install and use. Compact and durable: The product is compact and easy to install on aircraft, while also featuring a durable outer housing design that can withstand impact and vibration, protecting the safety of internal components. Specifications: Material: Printed Circuit Board Board Supply voltage: DC4~5.5V Sensor: MS4525 Working current: 5mA Output: I2C (SCL & SDA) Pressure Ranges: 1 PSI (6.89kPa) Maximum Pressure: 20 PSI (137.9kPa) Operating Temperature: -40C ~ 125C Accuracy: 0.25% SPAN LED red: power indicator JST-GH sequence: 5V, SCL, SDA, GND Weight: 3.5g (sensor board) Note: Wiring: 5V to FC 4~5.5V SCL to FC I2C_SCL SDA to FC I2C_SDA G to FC GND Package includes: 1x ASPD~4525 F4 Flight Control Sensor Board 1x JST-GH-4P to JST-GH-4P 20cm silicone wire 1x Pitot Tube 1x Clear silicone tubing 40cm