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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.




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'') |
| 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 | ![]() | IP68 |
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.




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'') |
| 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 | ![]() | IP68 |