Industrial-grade ultrasonic level sensor with protective housing and cable interface for continuous level monitoring.
Integrated ultrasonic level sensor with compact housing design for non-contact level measurement in industrial tanks.
Ultrasonic tank level sensor designed for continuous level measurement in industrial storage tanks.
Integrated ultrasonic level sensor with display for non-contact liquid level measurement in industrial tanks.
Ultrasonic water level sensor installed in a pit for non-contact continuous water level measurement.

Ultrasonic Level Gauge

The ultrasonic level gauge is a non-contact, high-reliability, and cost-effective device for accurate ultrasonic level measurement of liquids, slurries, and solids in industrial environments. Designed for easy installation and low maintenance, it offers a reliable solution for water treatment, municipal, chemical, metallurgical, and machinery manufacturing applications.

Ultrasonic level sensors are available in two types: integrated and separated. The integrated type combines the sensor and host into a single unit, providing simple and convenient installation. The separated type allows the sensor and host to be installed independently, making it ideal for storage tanks, silos, and bracket-mounted setups.



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  • Non-contact media measurement, is not affected by the viscosity, specific gravity, etc. of the measured medium, and has strong anti-interference;
  • Use environmentally friendly materials and do not pollute the measured medium;
  • Non-toxic, can be used for pharmaceutical and food industry measurement;
  • It can be equipped with relay contact output to realize the level alarm function;
  • Panel button setting parameters, user parameter setting is convenient and fast;
  • Using microprocessor and unique echo processing technology, it can adapt to the level and liquid level measurement under various complicated working conditions;
  • With self-learning function, it can identify the true echo, and the measurement result is accurate. It has automatic temperature compensation, suppressing drift and improving measurement accuracy.
  • The protection grade is IP67, which can be used in most outdoor working conditions.
Medium: Liquid or material that is generally or slightly corroded;
Standard measuring range: 5m, 10m, 15m, 30m, 50m, 60m;
Probe material: ABS, PVDF, PTFE;
Transducer material: Ceramic;
Measurement error: 0.5%. 1.0%;
Accuracy: ±3mm (no wave calm water surface)
Resolution: 3~5mm or 0.1% (take large value）
Display mode: LCD, parameters can be set through the panel buttons;
Signal output: 4~20mADC;
Load resistance: 250Ω (when two-wire 24V power supply);

500Ω (when four-wire 220VAC power supply);
Relay output: 2 groups are optional, and the relay status is programmable;
Relay contact capacity: 250VAC 8A. 30VDC 5A;
Process connection: Thread: M60x2, G2″;

Flange option: DN50-DN100 (other regulations can be customized) (HG/T 20592-2009);
Working temperature: -25~80 °C;
Rated pressure: -0.1 ~ 1.0MPa;
Communication interface: RS232, RS485/Modbus,
Power supply: Standard 24 V DC (two-wire system);

Optional 220VAC (four-wire system);
Electrical interface: M20*1.5, 1/2″NPT;
Explosion-proof grade: ExiaIICT6Ga/ExdIICT6Gb;
Protection level: IP67;
Shell material: Engineering-plastics, aluminum alloy, SS304;
Ambient temperature: (meter) -20-60 ° C; (sensor) -20~80 ° C;
Relative humidity: 95%.

 

An ultrasonic level sensor is a non-contact device that measures the distance to the surface of liquids or solids using high-frequency sound waves. The sensor emits ultrasonic pulses, which reflect off the material surface; the time-of-flight determines the level.

Manufacturer advantages:

  • No physical contact, reducing corrosion and contamination

  • Suitable for open tanks, silos, and reservoirs

  • Provides continuous, real-time level monitoring

Ultrasonic level sensors are ideal for non-corrosive, moderate-temperature applications:

  • Oil & Gas: Monitoring storage tanks for fuel, diesel, and light crude oil

  • Chemical: Measuring water-based or non-corrosive chemicals

  • Pharmaceutical: Tank and hopper level measurement for hygienic solutions

Manufacturer perspective: Proper sensor selection ensures accurate measurement without risking chemical contamination or sensor degradation.

eature Ultrasonic Level Sensor Radar Level Gauge Magnetic Level Gauge
Accuracy ±5–10 mm ±1–3 mm ±1–5 mm
Contact Non-contact Non-contact Float inside chamber
Pressure tolerance Low High High
Temperature tolerance Moderate High High
Maintenance Medium Low Very low

Manufacturer note: Ultrasonic sensors are best for open-air or low-pressure tanks, while radar and magnetic gauges are preferred for high-pressure, high-temperature, or corrosive fluids.

Yes. Ultrasonic sensors are commonly used in:

  • Water & Wastewater: Reservoirs, clarifiers, and sludge tanks

  • HVAC Systems: Chilled water and hot water storage tanks

  • Environmental Monitoring: Rainwater and stormwater level measurement

Manufacturer tip: Ensure proper tank geometry and echo-free mounting for accurate measurement.

  • Energy & Power: Cooling water tanks, fuel level monitoring

  • Automotive: Fluid level measurement in manufacturing tanks

  • Marine & Shipping: Ballast water, fresh water, and bilge monitoring

  • Mining & Environmental: Tailings, slurry, and sediment measurement

Manufacturer insight: Ultrasonic sensors provide cost-effective, non-contact measurement for applications with moderate process conditions.

  • Medium characteristics: Density, foam, vapor, turbulence

  • Tank geometry: Shape, size, and internal obstructions

  • Temperature & pressure: Typically <80°C and <1 MPa for standard models

  • Output: 4–20 mA, HART, Modbus

  • Installation: Avoid obstructions in the beam path; consider mounting height

Proper selection ensures stable, reliable, and maintenance-efficient level measurement.

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