Recognised & Supported by
The Holybro Digital Airspeed Sensor MS5525DSO is a compact digital pressure-sensing solution designed to measure aircraft airspeed in compatible UAV and fixed-wing systems.
High Measurement Resolution: Integrated ADC provides high-resolution digital pressure and temperature readings.
Low Offset: Designed for accurate differential pressure measurement with minimal offset.
Digital Output: Helps avoid noise and offset issues associated with long analogue signal cables.
Compact Design: Small-outline IC package supports space-efficient integration.
PT40 Pitot Tube: Includes a pitot tube for airflow pressure measurement.
Easy Connectivity: Supplied with GH 4P cable and 40 cm rubber tubing.
Firmware Support: Compatible with supported Holybro autopilot platforms running ArduPilot and PX4.
The Holybro Digital Airspeed Sensor MS5525DSO is a compact digital differential pressure measurement solution designed for UAVs, fixed-wing aircraft and autonomous aerial platforms. It measures the pressure difference associated with airflow to help an autopilot estimate the aircraft's airspeed.
Featuring a high-resolution digital pressure sensor, integrated ADC and digital pressure and temperature outputs, this sensor provides a practical alternative to traditional analogue airspeed measurement systems.
The package includes a PT40 Pitot Tube, 40 cm rubber tubing and a GH 4P cable, providing the essential components for integrating the sensor into compatible flight-control systems.
Designed for supported Holybro autopilot platforms running ArduPilot and PX4, this product is suitable for drone developers, UAV manufacturers, aerospace engineering projects and flight-control research.
The Holybro Digital Airspeed Sensor MS5525DSO uses differential pressure measurement to determine airflow-related pressure changes around an aircraft.
The MS5525DSO pressure-sensing component measures the difference between pressure inputs received through its pressure ports. The integrated low-power, high-resolution ADC converts the sensor measurements into digital data.
Unlike traditional analogue airspeed sensors that transmit ratio-metric output signals over cables, this digital architecture helps reduce signal noise and offset problems associated with long analogue wiring.
The sensor also provides temperature information alongside pressure measurements, allowing compatible autopilot systems to process the available sensor data.
Its compact construction and barbed pressure ports simplify integration into appropriately designed UAV electronics enclosures.
The MS5525DSO is a digital pressure-sensing component designed to measure pressure differences.
Differential pressure measurement is essential in aircraft airspeed sensing because the pressure difference between the Pitot tube and static pressure reference changes with airflow velocity.
The integrated analogue-to-digital conversion system provides digital pressure measurement data.
This reduces the need for external analogue signal conditioning and helps simplify electronic integration.
In addition to pressure measurements, the sensor provides temperature data.
Temperature information can be used by compatible flight-control systems as part of their sensor processing and measurement calculations.
The sensor is designed to provide very low measurement offset, supporting consistent differential pressure readings.
Digital communication helps reduce susceptibility to signal noise and ratio-metric output offset issues associated with long analogue cable connections.
An airspeed sensor operates by measuring the difference between total pressure and static atmospheric pressure.
The supplied PT40 Pitot Tube is positioned in the airflow so that it can detect the pressure generated by the aircraft's forward movement.
The general measurement process is:
Airflow Collection: The Pitot tube receives airflow pressure while the aircraft moves through the air.
Pressure Transmission: Rubber tubing transfers the pressure through the sensor's pressure connections.
Differential Measurement: The sensor measures the pressure difference between the relevant pressure inputs.
Digital Conversion: The integrated ADC converts the pressure measurement into digital data.
Temperature Measurement: The sensor also provides temperature information.
Autopilot Processing: A compatible flight controller receives the sensor data and processes it using supported firmware.
Airspeed Estimation: The autopilot uses differential pressure measurements and configured calculations to estimate airspeed.
Airspeed accuracy depends on correct Pitot tube placement, static pressure referencing, calibration, tubing installation and firmware configuration.
Digital Pressure Measurement: Provides digital differential pressure data.
Low Measurement Offset: Designed for reliable pressure sensing with minimal offset.
High-Resolution ADC: Supports detailed pressure measurement.
Low Power Consumption: Designed for low-power sensor applications.
Digital Temperature Output: Provides pressure and temperature information.
Compact IC Package: Supports space-efficient installation.
Barbed Pressure Ports: Enables connection to compatible pressure tubing.
Reduced Cable Noise: Digital output helps avoid noise problems associated with long analogue signal cables.
PT40 Pitot Tube: Includes an airflow pressure collection component.
GH 4P Cable: Provides the specified electrical connection cable.
ArduPilot and PX4 Support: Compatible with supported Holybro autopilot platforms.
Differential pressure sensing provides the measurement input required by compatible autopilot systems for airspeed estimation.
Digital communication helps minimize the cable-related noise and offset problems associated with traditional analogue outputs.
The compact sensor, barbed pressure ports and supplied accessories help simplify installation.
The operating voltage range of 1.8–3.6 V supports integration into compatible low-voltage electronic systems.
Digital pressure and temperature outputs provide useful measurement information for flight-control applications.
The supplied PT40 Pitot Tube, rubber tubing and GH 4P cable provide the essential components for sensor installation.
Parameter | Specification |
|---|---|
Brand | Holybro |
Model | MS5525DSO |
Sensor Type | Digital Airspeed Sensor |
Measurement Principle | Differential Pressure |
Pressure Sensor | MS5525DSO |
ADC | Integrated High-Resolution ADC |
Output | Digital Pressure and Temperature |
Pressure Connections | Barbed Pressure Ports |
Operating Voltage | 1.8–3.6 V |
Pitot Tube | PT40 |
Tubing Length | 40 cm |
Cable | GH 4P |
Firmware Support | ArduPilot and PX4 |
Shipping Weight | 0.03 kg |
Shipping Dimensions | 15 × 17 × 3 cm |
The sensor is suitable for several aircraft and UAV development applications.
Fixed-wing drone airspeed measurement
Autonomous aircraft development
UAV flight-control systems
Experimental aircraft projects
Drone navigation systems
Flight-data monitoring
Aerospace engineering research
UAV prototyping
Educational aerodynamics projects
Airspeed measurement experiments
Agricultural Drone Development
Supports fixed-wing UAV development and flight-control systems used in agricultural surveying and monitoring.
Aerospace Engineering
Useful for experimental aircraft development, airflow measurement and flight instrumentation projects.
Drone Manufacturing
Provides an airspeed measurement component for compatible fixed-wing and other suitable UAV platforms.
Research and Education
Suitable for engineering laboratories, universities and academic projects involving flight dynamics and aerodynamics.
Autonomous Systems
Supports airspeed-related data acquisition for compatible autonomous aircraft and UAV applications.
The sensor is designed for supported Holybro autopilot flight-controller boards running compatible firmware.
ArduPilot
PX4 Autopilot
The sensor can be integrated with compatible flight-control systems that support its digital communication interface and electrical requirements.
Potential integration components include:
Compatible Holybro autopilot boards
Fixed-wing UAV electronics
Flight-control power systems
Pitot pressure tubing
Compatible sensor connectors
Before purchasing, verify the exact autopilot model, connector pinout, communication interface and firmware support.
The operating voltage must remain within the specified 1.8–3.6 V range.
Correct installation is essential for obtaining reliable airspeed measurements.
Check the sensor, PT40 Pitot Tube, rubber tubing and GH 4P cable for physical damage.
Install the PT40 Pitot Tube in a suitable position where it receives relatively undisturbed airflow.
The mounting arrangement should minimize interference from propellers, aircraft structures and turbulent airflow.
Connect the supplied 40 cm rubber tubing between the Pitot tube and the appropriate pressure ports.
Ensure that the pressure connections are correctly identified and securely fitted.
Use the supplied GH 4P cable to connect the sensor to a compatible autopilot interface.
Verify the connector orientation and pin configuration before applying power.
Configure the appropriate airspeed sensor settings in the supported ArduPilot or PX4 firmware.
Perform the required differential pressure zero calibration and airspeed sensor configuration according to the autopilot documentation.
Check that the autopilot detects the sensor and displays reasonable pressure and airspeed readings before flight.
During aircraft operation, the PT40 Pitot Tube receives airflow pressure generated by the aircraft's forward movement.
The sensor measures the differential pressure and converts the information into digital data.
The connected autopilot processes these measurements to estimate airspeed.
Typical functions include:
Differential pressure measurement
Digital pressure data transmission
Temperature data output
Airspeed estimation through compatible firmware
Flight-data monitoring
Airspeed-related flight-control functions
Actual airspeed functionality depends on the aircraft configuration, pressure connections, firmware settings and calibration.
Regular inspection helps maintain dependable sensor performance.
Inspect the Pitot tube for dust and blockages.
Check rubber tubing for cracks or loose connections.
Keep pressure ports clean and unobstructed.
Inspect the GH 4P cable for damage.
Check connector seating before operation.
Verify sensor readings during pre-flight checks.
Perform calibration when necessary.
Protect the sensor from moisture and physical impact.
Store the assembly in a clean, dry environment.
Avoid blowing high-pressure air directly into the sensor ports, as excessive pressure may damage the sensing element.
Follow appropriate handling and installation precautions.
Operate the sensor only within its specified voltage range.
Verify electrical polarity and connector pinout.
Avoid short circuits during installation.
Keep the Pitot tube free from obstructions.
Ensure pressure tubing is connected correctly.
Avoid damaging the sensor's pressure ports.
Secure all cables and tubing before flight.
Complete calibration and ground testing before operation.
Follow the aircraft manufacturer's installation instructions.
Incorrect pressure connections or calibration can result in inaccurate airspeed measurements and unexpected flight-control behaviour.
Before purchasing this digital airspeed measurement assembly, consider the following factors.
1. Check Autopilot Compatibility
Verify that your Holybro flight-controller model supports the sensor and its communication interface.
2. Confirm Firmware Support
Check the ArduPilot or PX4 firmware version and its supported airspeed sensor configuration.
3. Verify Operating Voltage
Ensure that the available power supply is compatible with the 1.8–3.6 V operating range.
4. Consider Pitot Tube Placement
Plan an appropriate mounting location that provides reliable airflow pressure measurements.
5. Check Tubing Requirements
The package includes 40 cm rubber tubing. Confirm that this length suits your aircraft installation.
6. Review Package Contents
The package includes the sensor, PT40 Pitot Tube, rubber tubing and GH 4P cable.
7. Consider Your Aircraft Type
This sensor is particularly useful for fixed-wing UAVs and other aircraft configurations requiring differential-pressure-based airspeed measurements.
LOFTY AGROTECH supplies electronics, robotics, embedded systems and drone development components for engineering and industrial applications.
We support customers working on UAV manufacturing, academic projects, research and advanced technology development.
Reasons to choose LOFTY AGROTECH:
Technology products from established brands.
Components for drone and UAV development.
Electronics for engineering and research projects.
Convenient online purchasing.
Support for product-related enquiries.
A growing range of drone accessories and flight-control components.
Whether you are developing a fixed-wing drone, an autonomous aircraft or an experimental UAV, LOFTY AGROTECH helps you source the components required for your project.
Warranty coverage for the Holybro Digital Airspeed Sensor is subject to the manufacturer's applicable warranty terms and supplier conditions. Customers should verify warranty eligibility and coverage before purchasing. Damage resulting from incorrect wiring, excessive pressure, improper handling, physical impact or unauthorized modifications may affect warranty eligibility.
It measures differential air pressure to provide the measurement data required by compatible autopilot systems for aircraft airspeed estimation.
This product uses the MS5525DSO digital pressure-sensing component.
The package includes:
1 × Digital Airspeed Sensor (MS5525DSO)
1 × PT40 Pitot Tube
1 × 40 cm Rubber Tubing
1 × GH 4P Cable
The specified operating voltage range is 1.8–3.6 V.
Yes. It is supported on compatible Holybro autopilot boards running ArduPilot firmware.
Yes. It supports compatible Holybro autopilot flight-controller boards running PX4 firmware.
The PT40 Pitot Tube collects airflow pressure, which is used with differential pressure measurements to estimate aircraft airspeed.
Yes. It provides digital pressure and temperature outputs.
Digital output helps reduce signal noise and ratio-metric offset problems associated with long analogue cable connections.
Yes. It is suitable for compatible fixed-wing UAV systems that require differential-pressure-based airspeed measurement.
LOFTY AGROTECH serves customers across India, including Erode, Coimbatore and other locations in Tamil Nadu.
Drone developers, engineering students, UAV manufacturers, research institutions and aerospace enthusiasts can explore this sensor for their compatible flight-control projects.
Customers in and around Erode can contact LOFTY AGROTECH for product enquiries and purchasing assistance.
Improve your UAV development projects with reliable digital pressure-sensing technology.
Choose the Holybro Digital Airspeed Sensor with PT40 Pitot Tube for compatible airspeed measurement applications.
Explore drone electronics, flight controllers and UAV accessories at LOFTY AGROTECH.
For official government agricultural guidelines, scheme updates, and research initiatives, please visit the National Agriculture Portal. Click here →
