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Radar Water Level Sensor

Radar Water Level Sensor

Equipment options & specifications

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.

Appearance, connectors and included accessories follow the configuration confirmed in your quotation.

Related application hardware: Water Monitoring

Specifications & version options

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

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Buying this equipment

Samples & minimum quantity
Ask for a sample or a small pilot. Availability, minimum quantity and sample charges depend on the selected model.
Price & delivery
Range, interface, accessories, quantity and destination affect the quote. Stock, lead time, freight, taxes and delivery terms need confirmation.
Warranty & support
Coverage, duration, exclusions and the fault-assessment process are confirmed for the quoted model before order.
Certificates & documents
Tell us the destination and required standard. We check the exact model, document revision and available evidence; a family listing is not certification.
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Find the right document

Public documents describe this product family and selection options. Wiring, register maps and compliance documents must match the model and version selected for your order.

Open family selection sheet

English · Web page · printable
Current online selection reference

Open selection catalog

Water & Utilities Hardware Catalog
PDF · English · 388 KiB
File revision: 2026-07-22 · 82cac85fcd00

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Public now
Public selection guidance and model-selection catalogue
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Exact-model datasheet · Wiring / pinout · Register map, protocol or sample data · Model-specific certificates · Calibration and measurement evidence · Dimensions / installation drawing
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From a product family to your order
  1. Family page

    Compare uses, interfaces and configuration options. These are selection references.

  2. SG reference

    An SG code helps identify a sourcing option; it is not a substitute for the manufacturer model or its certificate.

  3. Written quotation

    Confirm the exact model, configuration, photograph, document revisions, accessories, price, delivery and warranty.

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Equipment in the system

System design, software integration, PLC/SCADA programming and site installation responsibilities are agreed in the written project scope.

Start from the site condition

Models and quotation stay on sungeneiot.com. Use the matching field condition first.

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-monitoring integration with field enclosure, gateway, power and industrial equipment

Remote integration context

Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.

Model-selection reference

Water & Utilities Hardware Catalog

Compare equipment options in this catalog section.

Open this catalog section
Catalog section
Radar and ultrasonic non-contact level transmitters
equipment references
9
PDF pages
7

SG codes for enquiry

9 sourcing references from “Radar and ultrasonic non-contact level transmitters”. Put an SG code in the RFQ so we can match the same catalog row.

  • SG-RLT-101
  • SG-RLT-102
  • SG-RLT-103
  • SG-RLT-104
  • SG-RLT-105
  • SG-ULT-102
  • SG-ULT-103
  • SG-ULT-104
  • SG-ULT-101
Open this catalog section

Continue product selection

Compare adjacent hardware families for the same monitoring path.

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

water-monitoring site with field instruments, an RTU enclosure and tank infrastructure
Instruments, enclosure, power and mounting are selected for the actual tank, well, reservoir or pump station.

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
See related application hardware

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
Request Hardware Quotation

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.

Can a radar water level sensor monitor a wastewater or chemical tank remotely?

Yes when tank height, vapor or foam, nozzle size, mounting access and the radio or serial path are reviewed together. Radar is often compared with ultrasonic or a submersible transmitter before quotation. Range, output and material compatibility are confirmed for the ordered configuration.

Does radar tank level monitoring need LoRaWAN, NB-IoT or a 4G RTU?

The sensor itself is the measuring head. A LoRaWAN node, RS485 collector or 4G RTU is selected from the site power, distance, existing cabinet wiring and where the reading must arrive. Share those constraints before the radio is frozen.

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. Use it to compare equipment options before requesting a configuration.

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.

Product-family reference. Final ordered model and specifications are confirmed in the written quotation.