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Industrial Liquid Level Sensor MODBUS RS485 Aviation Connector

An IP68 Liquid Level Sensor ranges - from 0 to 5 meters. Suitable for monitoring water, oil, and other mild-corrosive liquid levels. Use the sensor with Sensor Hub 4G data logger for seamless data collection and management.

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Please note that this sensor is factory-set to measure water density, if you have any requirements, please contact us at [email protected] to set the density like diesel or other mild-corrosive liquid. 


It measures liquid levels ranging from 0 to 5 meters, making it widely applicable in industrial environmental sensing scenarios.

This sensor is with a waterproof aviation connector. It is compatible with SenseCAP Sensor Hub 4G Data Logger, which can collect various sensor data simultaneously and send them via 3G/4G LTE.


  • High Performance: High accuracy, fast response, and stability
  • Universal Protocol: MODBUS-RTU RS485
  • Wide-range Power Supply: Can be powered with supply voltage within 11V ~ 30V
  • Strong Robustness: Suitable to be immersed in water, oil, and other mild-corrosive liquid for a long time, anti-corrosion material, excellent anti-corrosion performance, and durable
  • Maintainance-Free: Anti-blocking design, easy to clean


The liquid level sensor measures the liquid level of mildly corrosive liquids such as water and oil. It is compatible with a data logger or other devices that support the RS485 Modbus-RTU protocol.

The liquid level sensor has a built-in high-performance and highly sensitive silicon piezoresistive core. The internal chip converts the sensor's millivolt signal into a standard protocol that can connect to a computer, control instrument, or PLC.

It's small-size, lightweight, and easy to install. It has a stainless steel sealing structure that can work in a corrosive environment. The sensor has high anti-vibration and anti-impact performance. It can be widely used in process control, aviation, aerospace, automobile, medical equipment, HVAC, and other applications.


  • Reservoir detection
  • Pool pump station
  • River monitoring
  • Marine monitoring
  • Dam and Lake monitoring
  • Sewage treatment
  • Deep well level monitoring
  • Tank level monitoring



Measurement Range 0 ~ 5 meters
Cable Length 5.3 meters
Output Signal RS485 Modbus-RTU Protocol
Accuracy ± 0.25%F.S
Zero Temperature Drift ± 0.03%F.S/℃
Sensitivity Temperature Drift ± 0.03%F.S/℃
Long-term Stability ≤0.2%F.S/year
Response Time 5ms( (≤90%F.S)
Measurement Liquid  Slight corrosive liquid (water, edible oil, etc.)
Power Supply 11-30V DC
Overload Capacity 200%F.S
Compensation Temperature -10℃ ~ +70℃
Medium Temperature  -40℃ ~ +80℃
Storage Temperature -40℃ ~ +85℃

304 stainless steel shell,

316L stainless steel core,

special rubber-insulated cable.

IP Rating IP68
Device Weight 670g
Certifications  CE, FCC, RoHS

Technical Details

Wiring Diagram



HSCODE 9026100000
USHSCODE 9026104000
EUHSCODE 8517180000
CE 1
EU DoC 1
RoHS 1
UK DoC 1




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