Main product image for TFSLOT01: Clogging-Free Airspeed Sensor for UAVs
Product image 1 for TFSLOT01: Clogging-Free Airspeed Sensor for UAVs
Product image 2 for TFSLOT01: Clogging-Free Airspeed Sensor for UAVs
Product image 3 for TFSLOT01: Clogging-Free Airspeed Sensor for UAVs
Product image 4 for TFSLOT01: Clogging-Free Airspeed Sensor for UAVs
An innovative Venturi-effect airspeed sensor with a 9-axis IMU and customizable design. Open-source and ideal for low-speed UAVs.

TFSLOT01: Clogging-Free Airspeed Sensor for UAVs

Sold by ThunderFly

$455.41

No tax for United States [change]
Cable for connecting the sensor to the autopilot. The cable is in ThunderFly color scheme and is compatibile with dronecode (pixhawk) autopilots.
Stock available: 3
Sensors
I2C
Robotics

The TFSLOT01 is a next-generation airspeed sensor designed for UAVs. It uses the Venturi effect for superior performance at low airspeeds. This clog-resistant design is coupled with an integrated 9-axis IMU to be ready for additional diagnostic capabilities like vibration monitoring and angle-of-attack measurements.

This product is fully open-source, with a customizable 3D-printed case for seamless integration into UAV designs. Whether you're a developer, researcher, or enthusiast, the TFSLOT01 provides reliability, adaptability, and advanced functionality.

Key Features

  • Clog-Resistant Design: Venturi-based measurement removes stagnation point.
  • Integrated IMU: Features a 9-axis IMU (magnetometer, accelerometer, gyroscope) for advanced diagnostics.
  • Customizable: 3D-printed housing can be adapted to specific applications.
  • Weatherproof Build: IP42-rated for reliable operation in diverse conditions.
  • Enhanced Resolution: Optimized for speeds below 10 m/s.
  • Direct Integration: No need for additional tubing, reducing maintenance concerns.

Why Choose TFSLOT01?

The TFSLOT01 offers reliable airspeed measurement with its innovative Venturi-effect design, ensuring high accuracy and clog-free operation at low speeds. If you're looking for a lightweight and compact airspeed sensor based on the proven Pitot-static principle, check out our TFPITOT01. Designed for minimal weight and precise measurements, it’s an excellent choice for applications where every gram matters.

Technical Specifications

Parameter Value Description
Airspeed Range 0 - 48 m/s Assumes air density of 1.29 kg/m³
Dimensions 35 x 40 x 35 mm Default 3D-printed case
Weight 25 g Compact and lightweight
Operating Temperature −20°C to +40°C Reliable in diverse weather
Input Voltage +3.6V to +5.4V Overvoltage protection included
I2C Connector 4-pin JST-GH Pixhawk-compatible standard
Weather Resistance IP42 Protection against dust and water splashes

The sensor can operate at any altitude, but sensitivity decreases as air density drops. See the documentation for details.

Compatibility

  • PX4 Autopilots: Full airspeed and IMU integration.
  • Ardupilot: Hardware-compatible (airspeed calculations require manual configuration).
  • Custom Systems: Supports I2C interfaces.

Follow the PX4 guide for setup.

Included in the Package

  • TFSLOT01 sensor (assembled and ready to use)
    • 3D-printed protective case
    • Sealing O-rings
    • Optional I2C cable

Accessories

For enhanced reliability and flexibility, we offer high-quality I2C cables, specially designed to minimize electromagnetic interference.

Product Changelog

  • TFSLOT01C (2024): Enhanced mounting options for broader compatibility.
  • TFSLOT01B (2022): Upgraded electronics for better performance.
  • TFSLOT01A (2021): Initial prototype (not publicly released).

For full details, visit the releases.

Links to code and documentation

Documentation (docs.thunderfly.cz)

Design Files (github.com)

Shipping policy

No information available.
This product does not ship to United States.

The seller

ThunderFly

ThunderFly logo

Soběslav, Czechia
0 orders since Aug 23, 2025
Modular open-source avionics system for UAVs and research platforms. Based on the I2C architecture, it supports various sensors (RPM, Temperature/humidity, CO2, etc.) and offers flexible integration, data logging, and telemetry systems. Fully documented and customizable.