Radar Flow Sensor
Radar Flow Measurement
Radar open channel flow meter for non-contact measurement of flow velocities and levels in rivers, open channels, and drainage systems
Radar flow sensors measure surface-flow velocity and water level from above the channel and calculate flow rate through an integrated hydraulic model. The radar open channel flow meters are used in rivers, urban stormwater and wastewater networks, reservoir gates and irrigation channels, where they track changes in velocity, water level and overall flow throughout the day. The non-contact design allows the sensors to work continuously in any weather, giving clear and reliable flow data for teams that monitor these sites.
- Velocity Measuring Range 0.1 m/s to 25 m/s
- Velocity Accuracy ±1%
- Blind Zone 8 cm
- Velocity Pitch Angle 0° to 80°
- Distance Measuring Range 30 m
- Distance Accuracy ±1 mm
- Power Supply 9 to 30 VDC
- Velocity Antenna Beam Angle 12° × 25°
- Operating Temperature –20 to 70 °C
- Distance Antenna Beam Angle 6°
- Ingress Protection IP68
- Maximum Distance rrom Radar to Water Surface 30 m
- Communication Interface RS485 (baud rate configurable), Bluetooth
- Dimensions 165 × 79 × 94 mm
- Weight 1214 g
- Housing Material Aluminum alloy, PBT
- Mounting Method Bracket installation
- Communication Protocol Modbus
- Operating Current ≤25 mA @ 24 V (working mode);
≤1 mA @ 12 V (sleep mode)
- Radar flow sensors use a non-contact dual-radar setup with FMCW range measurement, along with wave-suppression processing to keep the data steady.
- A hydraulic model developed with industry specialists calculates flow in open channels and pipelines, so water level, velocity and flow rate are output at the same time.
- With IP68 protection, the sensors work well in demanding field conditions such as urban stormwater and wastewater networks, reservoir gates and irrigation channels.
- The compact design makes installation easier and reduces maintenance work.
- The in-house measurement module gives full control over the technology and allows flexible customization when needed.
- Bluetooth configuration is built in, giving field teams a simple way to adjust settings and access extra functions.
River-flow Monitoring
The sensors help measure flow rate directly in rivers, providing useful data for daily hydrology work.
Flood-season Monitoring
Flow sensors support field teams during the rainy season by tracking urban flooding and sudden flood rises in mountain areas.
Wastewater and Drainage Monitoring
They can be used in environmental inspections to check flow conditions in wastewater outlets and underground drainage pipelines.
Marine Monitoring
The sensors are suitable for nearshore measurements, where surface-flow conditions need to be observed regularly.
Bridge Monitoring
Flow meters assist in bridge-related surveys by measuring river flow beneath the structure for safer installation and maintenance.
