Liquid Level Sensor for Water Level, Oil Level and Mild-corrosive Liquid Level Monitoring

The Liquid Level Sensor is designed with industry-grade standards, for monitoring water level, oil level, and other mild-corrosive liquid levels. It incorporates stainless steel and insulated rubber, is IP68 rated, suitable for application in severe environments.

In stock
  • 10+: $70.00



Please send email to sensecap[at]seeed[dot]cc to request any technological support for this product.

The Liquid Level Sensor measures the height of water or other liquid and converts it to the voltage signal. It works with a data logger or other devices that have analog voltage input ports.

The Liquid Level Sensor has a built-in silicon piezoresistive core that features high sensitivity. The internal chip converts the millivolt signal into a standard voltage signal, which can be connected to a computer, a control instrument, or a PLC.

It's small-size and lightweight, easy to install. With a sealed stainless steel probe, it can work in water, oil, and mild-corrosive environments. 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.


  • High-performance: anti-interference and long-term stability
  • Robustness: anti-corrosion, durable and stable
  • User-friendly: anti-blocking design, easy to clean
  • Widely-applicable: 0.5~4.5V transmission output, can work with digital displays, PLC, inverters, recorders and other instruments
  • Industry-grade: IP68 rating, durable and waterproof, suitable for outdoor severe environments
  • Certifications: FCC, CE, and RoHS


Measurement Range 0 ~ 5 meters
Cable Length 5.3 meters
Output Signal 0.5 ~ 4.5V
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 5V 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


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

Output Voltage

Wiring Diagram

Probe Dimensions


HSCODE 9026900090
USHSCODE 9031808070



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