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HPM4100  Low-Cost Waterproof Submersible Liquid Level Sensor

Submersible level sensor features a 304/316L stainless steel housing and waterproof cable, designed for continuous liquid level measurement in tanks, wells, and water systems. The water level sensor offers a wide measuring range from 0–1m to 500mH₂O, with ±0.5%FS accuracy and long-term stability. Multiple output options (4–20mA, 0–5V, 0–10V, RS485) ensure easy integration into various monitoring systems. Customizable configurations are available for different applications.
 
 
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Overview

The HPM4100 submersible level transmitter is a cost-effective, submersible transmitter. It features a fully sealed submersible design. The transmitter consists of a pressure sensor that has undergone long-term stability and reliability testing, and a high-precision dedicated signal conditioning circuit, all encapsulated in a stainless steel housing. The integrated structure and standardized signal facilitate field use and automated control. A dedicated cable is sealed to the housing and can be submerged in liquids compatible with the transmitter's structural materials for extended periods. The housing is fully welded, and multiple sealing designs are used at the connections of the housing, cable, and other components to ensure reliable sealing performance. Internal potting ensures the product's longevity.

The HPM4100 submersible level transmitter offers advantages such as small size, ease of use, and excellent long-term stability. It is suitable for water level measurement and control in fields such as river and lake level measurement, container and tank level measurement, fire pool and water tank level monitoring, rainwater and sewage lift pump and pumping station level monitoring, urban water supply and drainage, and hydrological exploration.

Applications

  • Rivers and Lakes

  • Water Pools and Tanks

  • Groundwater, Water Level Monitoring, Urban Water Supply and Drainage, etc.

  • Water Treatment Industry

  • Marine Use

Features

  • Integrated submersible structure, simple and convenient

  • Multiple protection and sealed structure design, IP68 rating

  • Dual anti-condensation process

  • Full welding process

  • Wide measurement range, from 1m to 500m

  • Digital compensation for wide temperature range, good stability


Certificate

Our submersible level sensors are certified to international standards, ensuring reliable quality and stable performance in water level measurement applications.


iso9001CE-Level meterCE-Pressure SensorCE-Temperature Transmitter (Temperature Sensor)


Why Choose Us

  • High Accuracy Submersible Level Sensor
    Engineered with advanced sensing technology, this submersible level sensor ensures precise water level measurement with long-term stability (±0.5%FS typical).

  • Reliable IP68 Waterproof Design
    Designed for continuous submersion, this waterproof level sensor features a fully sealed structure and multiple protection designs for harsh environments.

  • Robust Stainless Steel Construction
    Built with 304/316L stainless steel housing, ensuring strong corrosion resistance and long service life in demanding liquid environments.

  • Wide Range for Various Applications
    With a measurement range from 1m to 500m, this liquid level sensor is ideal for tanks, rivers, groundwater, and water treatment systems.

  • Flexible Output for Easy Integration
    Supports 4–20mA, 0–5V, 0–10V, and RS485, making it easy to integrate into industrial automation and monitoring systems.

  • Proven Performance in Industrial Use
    Widely applied in water treatment, sewage systems, reservoirs, and pumping stations, ensuring stable operation in real-world conditions.


Technical Parameters

Pressure Range

0~1...500mH2O

Note:   Measurement units can be converted to ftH2O@4℃,   inH2O@4℃, m, mm, etc.

Gives the density   value of the measuring medium when the unit is m, mm, etc.

Overload

1.5 times   pressure range of full scale

Measuring Medium

various  liquid compatibles with 304 or 316L stainless steel

Output Signal/Power Supply

Two-wire   4~20mADC/24VDC(9~30VDC)
Three-wire System: 0~5V / Vs=9~30V
Three-wire System: 0~10V / Vs=12~30V
Four-wire System: Modbus-RTU/RS485 / Vs=10~30V

Accuracy

±0.5%FS (typical,@25℃),

Long-term Stability

±0.25%FS/year   (0.5G)



Ordering  Code  Name Picture
Features

W1

Mounting Thread (G1'')

螺纹安装固定件(06)

 The top fixes and supports the entire product
W4

Right-angle Mounting Bracket Kit

( M20*1.5)

The top fixes and supports the entire product
W8
Cable Hanger

Cable Gripping Hanger
W9 Waterproof Junction Box 防水透气接线盒W9(01) IP68 


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   No.18, Fenghua Road, Yuhua Economic Development Zone, Nanjing, Jiangsu,China
   +86-17551075580
    info@hjsensor.com
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