Drotek Sensirion SDP3x Airspeed Sensor Kit (SDP33)

Drotek Airspeed Sensor Kit SDP33 High-Precision Digital Airspeed Measurement for UAV Applications

ATGroup.store is expanding its professional UAV sensor lineup with the Sensirion SDP3x Airspeed Sensor Kit (SDP33), a compact, digital differential pressure solution designed for reliable airspeed measurement in drones, robotics, and industrial airflow applications.

Built around the SDP33 digital pressure sensor from Sensirion, this kit delivers high accuracy, fast response, and long-term stability, making it an excellent choice for flight controllers, fixed-wing UAVs, VTOL platforms, and research systems where precise airspeed data directly impacts performance and safety.

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Why Airspeed Matters in Professional UAV Systems

In advanced UAV platforms, airspeed is more than just telemetry. It is a critical control input used for:

Stall prevention on fixed-wing aircraft

Efficient cruise optimization

Accurate wind estimation

Energy management on long-range missions

Stable autonomous flight modes

Unlike GPS ground speed, true airspeed measured via differential pressure reflects the actual airflow over the wings or frame, which is essential for professional and industrial drones.

The SDP33 addresses this requirement with a fully calibrated digital sensing core that eliminates the need for external analog amplification or manual temperature compensation.

Key Technical Highlights of the Sensirion SDP33

The SDP33 belongs to Sensirion’s SDP3x family of digital differential pressure sensors and offers a feature set specifically well suited for UAV integration:

✔ Extended Measurement Range

Differential pressure range: -1500 Pa to +1500 Pa

✔ Fully Calibrated and Temperature Compensated

Each sensor is factory calibrated and temperature compensated, providing excellent repeatability with virtually no zero drift or offset over time.

✔ Fast Dynamic Response

Typical flow step response time: < 3 ms
This enables accurate tracking of rapid airspeed changes during aggressive maneuvers or gusty conditions.

✔ High Resolution Digital Output

16-bit pressure and temperature resolution

I2C digital interface (up to 1 MHz)

✔ Smart Measurement Modes

The SDP33 supports continuous and triggered measurement modes, including smart averaging, allowing system designers to balance speed, noise filtering, and power consumption depending on mission profile.

✔ Industrial Reliability

Operating temperature: -40 °C to +85 °C

Extremely low long-term offset drift (<0.03 Pa/year)

Compatible with air, N₂, and O₂ (non-condensing)

These characteristics make the SDP33 suitable not only for hobby UAVs, but also for commercial, research, and industrial platforms where stability over time is critical.

All specifications above are taken from the official SDP33 datasheet

Designed for Modern Flight Controllers and Embedded Systems

The SDP33 communicates via I2C and outputs digitally calibrated pressure and temperature values, simplifying integration with popular autopilot ecosystems and custom embedded controllers.

Typical use cases include:

Fixed-wing UAV airspeed sensing

VTOL transition optimization

Autonomous navigation research

Robotics airflow measurement

Environmental and laboratory instrumentation

Because the sensor already performs internal compensation and scaling, developers avoid the complexity of analog pressure sensors and external ADC chains.

This dramatically reduces noise susceptibility and integration time.

Advantages of the SDP33 Airspeed Sensor Kit at ATGroup.store

By offering the SDP3x (SDP33) as a ready-to-use airspeed sensor kit, ATGroup.store enables fast deployment into UAV platforms without deep sensor-level engineering.

Key benefits for professional users:

Digital I2C output, no analog signal conditioning required

Excellent repeatability for fleet-wide consistency

Very fast response for dynamic flight control

Compact form factor suitable for small and medium UAVs

Proven Sensirion CMOSens® technology with long-term stability

For integrators, drone manufacturers, and R&D teams, this translates into shorter development cycles and more predictable flight behavior across aircraft batches.

Ideal Applications

The Sensirion SDP33 Airspeed Sensor Kit is well suited for:

Fixed-wing and VTOL UAV platforms

Long-range mapping and surveying drones

Research and academic UAV projects

Robotics airflow sensing

Custom autopilot development

Whether you are building a new airframe or upgrading an existing system, the SDP33 provides professional-grade airspeed data in a compact digital package.

Available Now at ATGroup.store

ATGroup.store supplies the Sensirion SDP3x Airspeed Sensor Kit (SDP33) as part of our growing portfolio of professional UAV components and sensing solutions.

We support B2B customers, integrators, and developers with:

Technical consultation

Project-level sourcing

Multi-unit supply

Long-term cooperation for industrial UAV programs

For pricing, availability, or integration questions, contact our team directly through ATGroup.store.

Upgrade your UAV with precise digital airspeed sensing, powered by Sensirion SDP33.