Radar Water Level Sensor | 80 GHz FMCW Non-Contact Measurement,
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Technical Specifications

Product Advantages

Non-Contact Radar Measurement Technology

The Radar Water Level Sensor adopts advanced radar sensing technology to measure water level without direct contact with the water surface, avoiding the influence of sediment, debris, corrosion, and water pollution.

High-Precision Water Level Monitoring

Equipped with high-frequency radar technology and intelligent signal processing algorithms, the sensor provides accurate and stable water level measurements under various environmental conditions.

Excellent Performance in Harsh Environments

The non-contact design enables reliable operation in extreme conditions, including heavy rain, flooding, high humidity, strong sunlight, and high sediment environments.

Continuous Real-Time Monitoring

The sensor supports automatic and continuous water level observation, providing real-time data for hydrological analysis, flood warning, and water resource management.

Easy Installation & Low Maintenance

Without requiring underwater installation or regular cleaning, the radar sensor significantly reduces maintenance requirements and improves operational efficiency.

Remote Data Transmission & System Integration

Supports integration with RTU terminals, telemetry systems, and cloud platforms for real-time data transmission, remote management, and intelligent monitoring solutions.

Product Uses

• Measure real-time water levels in rivers, lakes, reservoirs, and channels.
• Monitor water level fluctuations for hydrological observation.
• Provide accurate water level data for flood forecasting and warning systems.
• Support reservoir operation and water resource management.
• Enable unattended long-term water level monitoring.
• Integrate with flow velocity sensors to calculate discharge.
• Provide field data for water management, analysis, and decision-making.

Product Applications

River & Hydrological Monitoring

Used in hydrological stations, rivers, and watershed monitoring networks to continuously measure water level changes and support hydrological forecasting.

Flood Warning & Disaster Prevention

Provides real-time water level information for flood risk assessment, early warning systems, and emergency response management.

Reservoir & Dam Safety Monitoring

Applied in reservoirs, dams, and hydraulic structures to monitor water storage levels and support safe operation and management.

Irrigation & Water Conservancy Systems

Used in irrigation channels, water diversion projects, and smart water systems to improve water allocation and management efficiency.

Urban Drainage & Smart City Applications

Applied in urban rivers, drainage channels, and stormwater systems to monitor water levels and prevent urban flooding.

Environmental & Ecological Monitoring

Supports long-term observation of lakes, wetlands, and natural water bodies for ecological assessment and environmental protection.

Industrial Water Management

Used for monitoring water levels in industrial reservoirs, wastewater channels, and process water systems.

Product Overview

The FS-LDSW-001 Radar Water Level Sensor from Frankstar is an 80 GHz frequency-modulated continuous wave (FMCW) radar product engineered for high-precision water level measurement. It is designed to serve hydrological, water conservancy, and municipal manhole monitoring projects, where dependable level data matters for daily operations and long-term planning. By operating at a higher frequency with a wider bandwidth, the sensor supports improved measurement accuracy compared with conventional approaches. Its maximum measuring range can reach up to 120 m, and the blind zone is less than 10 cm, giving installers useful flexibility across a broad range of site conditions.

How the Sensor Works

This radar water level sensor uses a non-contact measurement principle. Instead of touching the water surface, it transmits and receives radar signals, which means there is no direct contact with the water. As a result, measurement is unaffected by water quality, sediment, or floating debris. That characteristic supports excellent environmental adaptability and reliable performance in complex field conditions, from open channels and reservoirs to enclosed municipal manhole environments. Because the sensor does not sit in the water, there are fewer concerns about fouling or physical interference from what the water carries.

Why 80 GHz FMCW Technology Matters

The 80 GHz FMCW design is central to the product’s measurement behavior. Frequency-modulated continuous wave radar provides continuous signal evaluation, and the higher operating frequency together with wider bandwidth contributes to improved measurement accuracy. For teams comparing water level instruments, this combination is relevant when the application calls for precise level readings and consistent operation over time. The FS-LDSW-001 is built around this principle, keeping the measurement process stable whether the surface below is calm or moving.

Measuring Range and Blind Zone

Two specifications stand out for planning and installation. First, the maximum measuring range can reach up to 120 m, which allows the sensor to be considered for deep or tall structures where shorter-range devices may not reach. Second, the blind zone is less than 10 cm, which gives more usable measuring span near the top of the installation. Together, these figures help engineers and technical buyers assess whether the sensor fits a given site before specifying it. Actual installation height should always be reviewed against the specific structure and measurement requirements.

Applications

Hydrological monitoring is a natural fit for the FS-LDSW-001. Hydrologists and researchers need water level records that reflect actual conditions, and a non-contact radar sensor supports that need without being disturbed by sediment or floating material. In water conservancy projects, the sensor can contribute to level monitoring in channels, reservoirs, and related infrastructure where continuous observation supports operational decisions. Municipal manhole monitoring is another important application. Manhole environments can be enclosed and challenging, and a sensor that does not contact the water and is unaffected by water quality helps simplify monitoring in these locations.

Environmental monitoring teams also value the non-contact principle because it reduces direct exposure to the water body. Offshore operators and industrial users who need level data in demanding settings can evaluate the sensor against their own site conditions. Because the product is described for these hydrological, water conservancy, and municipal manhole monitoring projects, it is positioned as a practical instrument for organizations that require dependable level measurement rather than occasional spot checks.

Buyer Value and Selection Considerations

For technical buyers, distributors, and system integrators, the FS-LDSW-001 offers a clear combination of features to evaluate: 80 GHz FMCW radar technology, a maximum measuring range up to 120 m, a blind zone under 10 cm, and non-contact operation that is unaffected by water quality, sediment, or floating debris. These attributes support excellent environmental adaptability and reliable performance in complex field conditions. When comparing radar water level sensors, buyers should match the sensor’s stated capabilities to the actual measurement task, installation geometry, and monitoring objectives. The FS-LDSW-001 is intended for high-precision water level measurement, and its design reflects that focus.

Installation and Integration Notes

Because the sensor operates without contacting the water, mounting and alignment are the primary installation considerations. The blind zone of less than 10 cm should be accounted for when setting the reference point and configuring the measuring span. The maximum range of up to 120 m provides headroom for taller structures. For hydrological, water conservancy, and municipal manhole monitoring projects, the sensor can be integrated into monitoring setups where level data is collected and used for reporting, control, or analysis. Specific wiring, output, and configuration details should be confirmed against the official product documentation before purchase or deployment.

About Frankstar

Frankstar provides ocean technology and water monitoring products for professional users, including marine researchers, offshore operators, environmental monitoring teams, distributors, and technical buyers. The Radar Water Level Sensor FS-LDSW-001 is part of that offering, designed for high-precision water level measurement in the applications described above. The company’s focus is on supplying instruments that support real-world monitoring needs with clear specifications and practical application fit.

Inquiry

If you are evaluating a radar water level sensor for a hydrological, water conservancy, or municipal manhole monitoring project, Frankstar welcomes your inquiry. Please contact us with your application details and measurement requirements so we can help you determine whether the FS-LDSW-001 is suitable for your site. We are happy to provide further information based on the official product specifications.