RMRC Digital Airspeed Sensor for Pixhawk, Ardupilot, INAV, Sensor Board Only
by RMRC

RMRC Digital Airspeed Sensor for Pixhawk, ArduPilot, & INAV

The RMRC Digital Airspeed Sensor is a high-precision measurement module designed for fixed-wing aircraft and autonomous UAVs requiring accurate ground-relative air data. Utilizing the industry-standard MS4525DO digital pressure sensor, this board offers significant advantages over traditional analog sensors, including superior noise immunity and a high-resolution 14-bit data output via the I2C bus. For government sUAS contractors and aerospace engineering labs, this sensor is critical for enabling reliable "Automatic Takeoff and Landing" (ATOL) and preventing aerodynamic stalls during long-range mapping or surveillance missions.

Designed with a plug-and-play mindset, the board features a 4-pin JST-GH connector, allowing it to interface directly with modern flight controllers like the Cube Orange+, Pixhawk 6C, or Matek Wing series without custom wiring. Its compact, lightweight design ensures it can be integrated into small-scale reconnaissance drones without negatively impacting the center of gravity. Whether you are navigating a tactical FPV mission or developing an autonomous flight stack, the RMRC Digital Airspeed Sensor provides the industrial reliability and environmental stability needed for high-fidelity flight control.

Technical Specifications

• Sensor Type: Digital (Measurement Specialties MS4525DO)

• Communication Interface: I2C (Serial Data/Clock)

• Resolution: 14-bit Pressure / 11-bit Temperature

• Input Voltage: 4.5V – 5.5V DC

• Accuracy: ±0.25% SPAN

• Total Error Band (TEB): <1.0% (over compensated range)

• Measurement Range: 1 psi (approx. 100 m/s or 223 mph)

• Max Overpressure: 300 psi

• Connector: 4-pin JST-GH (standard Pixhawk 2.1/Cube)

• JST-GH Sequence: 5V, SCL, SDA, GND

• Weight: ~3.5g (Sensor board only)

• Dimensions: ~20mm x 21mm x 13mm (including pressure ports)

• Operating Temperature: -25°C to +105°C

• Firmware Support: ArduPilot (ArduPlane), PX4, and INAV (7.0+)

What is Included

• 1x RMRC Digital Airspeed Sensor Board (MS4525DO)

• (Note: This SKU is the "Sensor Board Only" version; Pitot tubes and tubing are available separately if required for complete installation.)