Smart Surface Water Flow Sensor – Real-Time Monitoring for Open Channels, Rivers & Drainage Systems
The Smart Surface Water Flow Sensor is a rugged, high-precision sensor developed for real-time monitoring of flow conditions in surface water systems. Whether installed in rivers, canals, drainage ditches, or culverts, this compact sensor delivers continuous flow velocity and volume data—even in harsh and dynamic environments. Ideal for municipalities, water boards, and system integrators seeking actionable insights for climate resilience, flood prevention, and smart water infrastructure.
Main features
- Flow velocity measurements: Accurately measure water flow speeds from 0.1 to 2 m/s at distances between 30 cm and 2 meters from the water surface.
- Response time over the full measurement range: 10 to 20 sec
- Multi-Application Monitoring: Easily deployed in sewer networks, manholes, drainage systems, and surface water channels.
- Real-Time Water Level Data: Supports proactive maintenance, overflow prevention, and early flood detection.
- Robust & Waterproof Design: Built to withstand harsh wastewater environments, with IP-rated housing for long-term field deployment.
- Easy Integration: Compatible with telemetry and various IoT platforms via standard analog or digital outputs
- Low Maintenance, High Uptime: Designed for long-term stability and minimal recalibration, even in high-moisture or debris-prone settings.
- Interfaces: RS485, UART, I2C over RS485. Optional: 4-20mA current interface
The importance of water flow monitoring
Understanding surface water flow is essential for effective flood control, water distribution, and environmental protection. Continuous monitoring enables municipalities and utilities to:
- Detect and react to sudden increases in flow due to rainfall or upstream discharge
- Improve flood forecasting accuracy
- Meet regulatory requirements for water quality and hydrological balance
- Enable smart control of pumping stations, weirs, and gates
Flow sensors (see also wiki) are no longer expensive, standalone systems—modern flow sensors offer robust, accurate measurements, digital connectivity, and cost-efficient scalability across water infrastructure.
Technical Specifications
| Feature | Specification |
|---|---|
| Measurement Range | 0.1 m/s up to 2 m/s |
| Installation distance | 30 cm up to 2 m |
| Measurement Principle | Radar sensor, 60GHz |
| Accuracy | application specific |
| Output Signal | RS485, UART, I2C over RS485. Tested with cable lengths up to 30m. Optional: 4-20mA current interface |
| Input Voltage Supply | 18-24 Vdc |
| Input current consumption Idle mode Measurement mode | on request mA on request mA |
| Ingress Protection | IP69 |
| Temperature Range | -5°C to +50°C |
More detailed measurement information is available on request.
Top Use Cases & Applications for a Smart Water Height Sensor
Smart surface water flow sensors are essential components of modern water infrastructure, delivering real-time, reliable measurements of flow velocity and volume across a wide range of environments. From surface water channels and urban drainage systems to stormwater and irrigation networks, these sensors empower municipalities, utilities, and system integrators to improve response times, reduce flood risks, and optimize water management. Below is a summary of the most relevant and widely used applications for deploying surface water flow sensor technology.
Surface Water Flow Monitoring
Continuously monitor flow in rivers, canals, and stormwater channels. Supports accurate flood forecasting and real-time volume tracking. Ideal for water boards and municipalities managing open water systems.
Drainage Ditch and Culvert Flow
Track flow in ditches and culverts to detect blockages or sediment buildup. Helps maintain efficient drainage and prevent localized flooding. Suitable for both rural and urban environments.
Retention Basin Management
Measure inflow and outflow rates in stormwater basins. Supports overflow prevention and optimized basin operation. Key in green-blue infrastructure and sponge city designs.
Smart Irrigation & Agricultural Use
Monitor flow in irrigation canals and field drainage systems. Ensure even water distribution and reduce waste. Ideal for precision agriculture and sustainable farming practices.
Combined Sewer Overflow (CSO) Monitoring
Detect early overflow risks by tracking flow patterns at CSO locations. Supports compliance with environmental regulations. Helps reduce pollution from stormwater surges.
Urban Stormwater Systems
Monitor stormwater flow in real-time across urban drainage networks. Enables fast response during heavy rainfall events. A core component of smart city water infrastructure.
Smart Water Flow Sensor for Sewer, Surface & Stormwater Monitoring
Reliable, low-maintenance water flow monitoring – fully IoT-ready
Our smart surface water flow sensor is designed for real-time monitoring of water flow in sewer pipes, manholes, culverts, and surface water bodies. Built for harsh environments and long-term deployments, it offers accurate measurements, open communication interfaces, and seamless integration into SCADA, telemetry, or custom dashboard systems.
Designed for Municipalities, Utilities & OEM Integrators
- Open Protocols for Easy Integration
Supports RS485, UART, I2C over RS485. Optional: 4-20mA current interface and optional IoT protocols like MQTT – ideal for SCADA systems, cloud dashboards, and OEM platforms. - Low Maintenance, High Reliability
Rugged IP68/IP69 design, long calibration intervals, and minimal cleaning needs make this sensor perfect for remote or difficult-to-access locations. - Affordable & Scalable
With a low total cost of ownership, the sensor is well-suited for both standalone installations and network-wide rollouts. - Regulatory Compliance Support
Helps meet national and EU water management standards, including overflow monitoring, surface water reporting, and flood resilience planning. - Data-Ready for Visualization
Easily connect to real-time dashboards or third-party software for actionable insights and automated reporting.
Discover the Advantage of the Smart Water Flow Sensing
Experience the precision of Dutch engineering with DutchWaterSensors—where advanced sensor technology meets real-world water monitoring needs for reliable and accurate performance in every drop.
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