Geolux RSS-2-AB Water Surface Velocity Measurement Kit for Drones
The Geolux RSS-2-AB is an airborne K-band surface-velocity radar that measures the flow speed of a water surface without contact. Operating between 24.075 and 24.175 GHz, it returns flow-speed readings ten times a second over RS-232. Mounted on a drone and automated by SkyHub and UgCS, it measures river and channel flow at precise points that are dangerous or impossible to reach with traditional instruments — no in-water deployment and no fixed infrastructure required.
Measuring a River’s Flow Speed Using a UAV-Borne Water Surface Velocity Radar

Flow velocity from the air, anywhere
The biggest advantage of a UAV-borne velocity radar is access: it measures in hard-to-reach places with no existing infrastructure. The whole survey is automated by the SkyHub onboard computer and UgCS mission planning, so the sensor hovers at a defined point and captures repeatable surface-velocity readings on demand.

Reference-grade data, SkyHub-logged
K-band radar delivers ten flow-speed readings per second, validated against ADCP reference measurements. The kit connects to SkyHub for georeferenced logging and works across drones including the DJI M350/M300 RTK and Pixhawk platforms. It is the airborne version of the proven Geolux RSS-2-3000w, supplied with sensor, mountings, SkyHub cable and logging software.
Applications
Hydrological surveys, environmental monitoring, water-supply engineering projects, accurate discharge monitoring in rivers, and flow monitoring in irrigation channels.
Service & Warranty
Supplied by GulfNet Emirates Drone & Robotic Systems with UAE-based technical support, integration guidance and full manufacturer warranty. The RSS-2-AB requires the SkyHub onboard computer and additional components for drone operation — request a quote and our team will propose the complete, ready-to-fly hydrometric kit.
Key Specifications
| Sensor type | K-band (24.075–24.175 GHz) surface velocity radar — contactless |
| Measurement | Surface flow velocity |
| Update rate | 10 readings per second over serial RS-232 |
| Operation | Automated point measurements via SkyHub + UgCS mission planning |
| Onboard computer | Requires the SkyHub onboard computer for data logging |
| Supported drones | DJI M350 / M300 RTK and Pixhawk-based drones (via SkyHub) |
| Base sensor | Airborne version of the Geolux RSS-2-3000w |
| Certifications | EN 60950-1, EN 62311, EN 301 489-1/-3, EN 61000-6-2/-3, EN 300 440, EN 60529 |
| In the kit | Geolux RSS-2-AB sensor, mountings, cable to SkyHub onboard computer, data-logging software |
| SKU | IS-GEOLUX-RSS-2-AB |
Frequently Asked Questions
What does it measure?
Water surface flow velocity, contactlessly, using a K-band radar operating at 24.075–24.175 GHz. It outputs ten flow-speed readings per second over RS-232.
Why use it on a drone?
A UAV-borne velocity radar can take measurements in hard-to-reach places with no existing infrastructure, automated to hover and measure at a specified point — ideal for discharge monitoring in rivers and irrigation channels.
What do I need to run it?
The SkyHub onboard computer is required to log the data; via SkyHub it works with drones including the DJI M350/M300 RTK and Pixhawk platforms. The kit includes the sensor, mountings, SkyHub cable and logging software.
How does it relate to the Geolux RSS-2-3000w?
The RSS-2-AB is the “airborne” version of the Geolux RSS-2-3000w, packaged for drone surveys with mountings, a SkyHub cable and logging software.










