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Surface Water Speed & Discharge Sensors – Geonica

High-Precision Non-Contact Surface Flow Velocity & Discharge Monitoring for Rivers, Canals & Open Channels

The Surface Water Speed & Discharge Sensors by Geonica (GEO-WFM300 / GEO-WDS3000) are advanced radar-based monitoring solutions designed for accurate surface water velocity, level, and discharge measurement in open channels such as rivers, irrigation canals, sewer systems, wastewater plants, and hydropower applications. These sensors use non-contact Doppler radar technology, allowing safe installation above the water surface without direct contact, reducing maintenance and improving long-term reliability. The GEO-WFM300 measures surface velocity, while the GEO-WDS3000 combines both velocity and water level sensing for real-time discharge calculation. Built for harsh outdoor environments, these sensors provide reliable operation even during floods, sediment-heavy flows, and wastewater conditions. With IP68-rated housing, automatic tilt compensation, and multiple communication outputs including RS-485, RS-232, Modbus, and 4–20 mA, they are ideal for continuous hydrological monitoring and remote telemetry systems.

Key Features:

  • 📡 Non-Contact Radar Flow Measurement

    Uses advanced 24 GHz Doppler radar technology to accurately measure surface water speed without direct sensor contact, preventing fouling and minimizing maintenance.

  • 🌊 Wide Velocity Measurement Range

    Supports flow velocity measurement from 0.02 m/s to 15 m/s, suitable for both low-flow streams and high-speed flood conditions.

Key Features:

  • 📏 Real-Time Water Discharge Calculation

    The GEO-WDS3000 integrates surface velocity and radar water level measurement with pre-configured channel geometry to calculate total water discharge automatically in real time.

  • 🛡️ IP68 Rugged Outdoor Design

    Built with durable weatherproof housing for continuous field installation in rivers, canals, stormwater drains, and industrial flow systems under harsh environmental conditions.

Applications:

  • 🌊 River & Open Channel Monitoring

    Ideal for monitoring rivers, streams, irrigation canals, and open channels where accurate flow velocity and discharge data are required.

  • 🌧️ Flood Warning & Stormwater Systems

    Supports flood forecasting and emergency response with continuous real-time flow and level monitoring during high-flow events.

  • 🏭 Wastewater & Sewer Flow Monitoring

    Used in wastewater treatment plants, sewer systems, and industrial drainage channels where contact sensors may fail due to debris and sediment.

  • ⚡ Hydropower Plant Monitoring

    Suitable for flow control and discharge monitoring in hydropower plants and industrial water management systems.

Why Choose This Solution?

The Geonica Surface Water Speed & Discharge Sensors provide dependable and maintenance-free flow monitoring for critical water management applications.

Highly Accurate Flow Monitoring

Delivers 1% accuracy with 0.001 m/s resolution for precise hydrological analysis and operational decisions.

Easy Integration with Monitoring Systems

Supports RS-485, RS-232, Modbus, NMEA, and optional 4–20 mA outputs, enabling seamless connection to PLCs, SCADA systems, and dataloggers.

Low Maintenance Operation

Mounted above the water surface, the sensor avoids damage from mud, floating debris, and sediment buildup.

Designed for Harsh Environments

Engineered for long-term outdoor deployment with automatic cosine correction and strong environmental durability.

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