
Final configuration is confirmed in the quotation.
Radar Water Level Sensor
76–81 GHz FMCW non-contact level sensor for rivers, lakes and shallow-water monitoring, with a 0.1–65 m range and RS485 Modbus RTU output.
Start with the information you have. Exact model, interface and certificates are confirmed in writing before order.
Image details
Product images are representative. Use the model-selection catalog for audited SG-coded options; final enclosure, connectors and ordered specifications are confirmed in the quotation.
Related solution: Water Monitoring
Where the hardware sits in the monitoring path
A planning view, not a fixed bundle. Signal type, protocol, power, network and the customer endpoint are confirmed before quotation.

Field hardware
Wireless Split-Core CT Current Sensor Family
Customer system
SCADA, BMS or customer-owned platform
Specifications
- Method / frequency
- FMCW radar, 76–81 GHz
- Range / blind zone
- 0.1–65 m / ≤0.1 m
- Accuracy / resolution
- ±3 mm typical / 1 mm
- Output
- RS485 (Modbus RTU)
- Power supply
- 10–33 VDC
- Protection / temperature
- IP68 / -40 to +85 °C
How the model is selected
The written quotation ties the site requirement to one reviewed hardware configuration.
Site requirement
Application, medium, mounting and environment
Hardware configuration
Signal, protocol, power and enclosure
Quote confirmation
Model, quantity, certificates and delivery

Remote integration context
Representative site context. Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.
Model-selection reference
Water & Utilities Hardware Catalog
Use this audited section to compare available hardware configurations. The representative website image is not an exact model photograph; the ordered configuration is confirmed in the quotation.
- Catalog section
- Radar and ultrasonic non-contact level transmitters
- SG-coded options
- 9
- PDF pages
- 7
Continue product selection
Compare adjacent hardware families for the same monitoring path. The final combination is checked against the project I/O, protocol, power and enclosure requirements.
How to choose
- Confirm the maximum measuring distance and keep the installation inside the 0.1–65 m rated range, with clearance above the blind zone.
- Use a stable bracket with a clear downward view of the water surface; provide the mounting height and nearby obstructions for review.
- The verified interface is RS485 Modbus RTU with 10–33 VDC supply, so confirm the gateway port and field power before quotation.
- The standard field cable is 10 m and can be customized; state the required run from the sensor to the enclosure or gateway.
Compatible with
- 4G/LTE RTU gateway
- RS485 data acquisition gateway
- SCADA level alarms
- Solar field power kit
Typical package
- Radar level sensor
- Mounting bracket and hoop
- 10 m field cable (custom length available)
- RTU or gateway input
Applications

Use this radar sensor when a river, lake, reservoir or tank needs non-contact water-level measurement with a clear view of the surface. The reviewed unit measures from 0.1 to 65 m and sends readings over RS485 Modbus RTU to a compatible RTU or data-acquisition gateway.
- River, lake and reservoir water-level telemetry
- Non-contact tank level measurement where the surface is visible
- RS485 level input to a 4G/LTE RTU or data-acquisition gateway
- Solar-powered remote level sites after the field load is checked
What to include in your quote request
- Maximum measuring distance and mounting height
- Water body / tank and nearby obstructions
- Available 10–33 VDC field power
- RS485 gateway / RTU connection
- Cable length and quantity
Related selection guides
Related resources
Frequently asked questions
How does the radar sensor connect to an RTU or SCADA system?
The reviewed unit provides RS485 Modbus RTU output and accepts 10–33 VDC. Connect it to a compatible RS485 port on the RTU or data-acquisition gateway, then confirm the ordered unit’s register map, cable run and polling plan before commissioning.
Where can this radar level sensor be installed?
Typical sites include rivers, lakes, reservoirs and tanks with a clear downward view of the water surface. Keep the installation within the 0.1–65 m range, above the blind zone, and provide the mounting height and nearby obstructions for review.
What environmental limits have been reviewed?
The reviewed rating is IP68 with an operating temperature of -40 to +85 °C. The final bracket, hoop, field cable length, connector protection and enclosure entry are confirmed for the installation.
What should I provide when requesting a quote for the Radar Water Level Sensor?
Maximum measuring distance and mounting height; Water body / tank and nearby obstructions; Available 10–33 VDC field power; RS485 gateway / RTU connection
Where can I compare available model options?
Open the Water & Utilities Hardware Catalog linked on this page. It lists audited SG-coded selections; the ordered configuration is confirmed in the quotation.
Will it work with my existing system?
Compatibility is reviewed against your field signals, protocols and upstream platform. Typical pairings include 4G/LTE RTU gateway, RS485 data acquisition gateway, SCADA level alarms.



