Radar Level Sensors / 80GHz High Precision Level Measurement

Instrava Curated Instruments presents advanced radar level sensors, engineered for high-precision, non-contact level measurement in complex industrial environments including high temperature, corrosive liquids, and confined tanks.

Through our Curated Instruments approach, this solution is optimized for:

  • high temperature tank level measurement systems
  • chemical and slightly corrosive liquid monitoring
  • small tank level detection with minimal blind zone
  • industrial level measurement in stirring, condensation, and vapor conditions

With 80GHz millimeter-wave radar technology and ATEX-certified safety, these sensors ensure reliable, accurate performance in even the most demanding applications.

Transmitters & Sensors Description  

High Accuracy & Focused Signal Performance

This radar level sensor delivers:

  • High accuracy up to ±1 mm for precise measurement
  • Narrow beam angle (3°) for focused signal and reduced interference
  • Wide measuring range (up to 120m)
  • Excellent performance for low dielectric media (ε ≥ 1.5)
25m range non-contact radar level sensor, model QTRD-82, with 4-20mA HART output and IP67 protection rating.
Threaded mounting 80GHz high-frequency radar water level sensor, 20m range, supporting remote system integration.

Advanced Millimeter-Wave Radar Technology

Equipped with 76–81GHz high-frequency radar, this sensor offers:

  • Compact RF architecture with self-developed chip
  • Improved echo signal processing and filtering
  • Strong resistance to false echo interference
  • Stable performance in foam, condensation, and agitation

Performance advantages:

  • Minimal impact from temperature, pressure, or vapor
  • Reliable in stirring and turbulent conditions
  • Accurate measurement even in complex tank geometries

Corrosion-Resistant & Explosion-Proof Design

  • PTFE lens antenna → anti-corrosion & anti-material buildup
  • Compact or remote structure options
  • Explosion-proof certification: Ex d IIC T6 Gb (optional)
  • IP67 protection for industrial environments

Supports:

  • 4–20mA / HART / RS485 / Modbus / Bluetooth
  • 2-wire / 4-wire systems
  • Multi-language interface (EN / ES / RU / PT / KR)
QTRD-85 radar water level sensor with heat dissipation structure for level monitoring in complex conditions.
QTRD-84 radar liquid level sensor with horn/lens antenna design, 20m range, 4-20mA HART.

Typical Applications

This radar level sensor is widely used in:

  • Chemical tanks (slightly corrosive liquids)
  • High temperature industrial vessels
  • Oil & gas storage systems
  • Small tanks with complex internal structures
  • Environments with condensation, foam, or agitation

Suitable for measuring:

  • water and industrial liquids
  • chemical solutions
  • low dielectric liquids
  • complex process media

Transmitters & Sensors Parameter  

ParameterSpecification
Frequency76–81 GHz
Measuring Range10m / 20m / 30m / 80m / 120m(Different models feature different measurement distances; the product shown in the image represents just one specific type.)
Accuracy±1 mm (≤30m), ±3 mm (≥30m)
Resolution±1 mm
Beam Angle
Blind Zone0.15m–0.6m
Process Temperature-30°C ~ +100°C
Process Pressure-0.1 ~ 0.3 MPa
Ambient Temperature-30°C ~ +70°C
Power Supply18–28 VDC / 85–265 VAC
Output Signal4–20mA / HART / RS485 / Modbus / Bluetooth
Protection LevelIP67
Explosion ProofEx d IIC T6 Gb (optional)
MaterialPTFE (antenna), Aluminum / SS304 / SS316
InstallationThread (1.5”) / Flange

Instrava OEM/ODM

Reliable Instruments. Solutions That Fit Your Application.

Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.

By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

symbolizing trust and the beginning of a long-term partnership

Related Product Recommendations  

Radar level sensors measure liquid or solid levels by emitting microwave signals and analyzing the reflected signal from the material surface. The time delay is converted into distance, enabling precise, continuous, and non-contact level measurement.

80GHz radar sensors offer:

  • Higher accuracy (up to ±1 mm)
  • Narrow beam angle for precise targeting
  • Better performance in small tanks
  • Strong resistance to interference
  • Reliable measurement of low dielectric materials

They are ideal for high-precision industrial applications.

The blind zone is the minimum distance from the sensor where accurate measurement is not possible. Modern radar sensors reduce this zone (as low as 0.15m), making them suitable for small tanks and short-range measurements.

Yes, many radar level sensors are available with ATEX or explosion-proof certifications (Ex d IIC T6), making them safe for use in hazardous environments such as chemical plants and oil storage facilities.

Yes, radar level sensors are highly resistant to environmental interference and can accurately measure levels even in the presence of foam, vapor, condensation, or dust, unlike ultrasonic sensors.

Key factors include:

  • tank size and measuring range
  • material type (liquid, solid, dielectric constant)
  • process temperature and pressure
  • installation constraints and blind zone requirements
  • communication and output needs

Selecting the correct radar sensor ensures optimal accuracy and long-term reliability.

Why Choose Instrava

Built on Consistency, Not Claims

Focused on Industrial Applications

We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.

Strict Product Selection Criteria

Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.

Reliable Supply & Quality Consistency

We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.

Practical, Experience-Based Support

Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.

Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

Industrial measurement scene showing a worker using a precision measuring instrument to measure and mark material on a workbench, demonstrating the practical application of measuring instruments in manufacturing and processing.

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