HCDB-30 Submersible Hydrostatic Level Transmitter | HCCK Water Level Sensor High Accuracy

HCDB-30 Submersible Hydrostatic Level Transmitter | HCCK Water Level Sensor High Accuracy

  • Application:Liquid
  • Measuring Range:0-350m
  • Measuring Sensor Housing:Stainless Steel 304
  • Process Temperature:-20~85℃
  • Pressure Accuracy Tolerance:0.1%FS, 0.2%FS, 0.5%FS
  • Power Supply:24VDC
  • Signal Output:4-20mA Two-wire/RS485 Modbus

20~85℃ 0-350m Submersible Hydrostatic Liquid Transmitter Stainless Steel 304 24VDC Hydrostatic Water Level Transmitter

The input level gauge is based on the principle that the measured hydrostatic pressure is proportional to the height of the liquid. A pressure sensor is used to convert the pressure signal into an electrical signal, which is converted into a standard current signal or digital signal after temperature compensation and linear calibration.

It is equipped with a high-quality cable with an air duct; on-site display is available; two types of sensors are available for multiple applications. The imported silicon piezoresistive sensor features high precision and good stability; the ceramic sensor has a large-hole design, offering anti-blocking and anti-corrosion performance. It is directly submerged in the liquid to be tested, making installation simple.

The input-type liquid level meter is suitable for urban water supply and sewage treatment, water conservancy and hydropower monitoring and control, marine and offshore systems, chemical, medical equipment, industrial on-site liquid level measurement and control, water supply and drainage, environmental protection systems, and static pressure level measurement of various media in various industries.

HCDB series are input Hydrostatic Level Transmitter, using high-quality cable containing airway and imported sensors.

HCDB series has high accuracy and high stability.

It can be directly put into the liquid to be measured, and easy to install.

It is suitable for the liquid level measurement of urban water supply and sewage treatment, water conservancy and hydropower monitoring, navigation and ship systems, chemical industry, medical equipment, environmental protection and other industrial sites.

The input level gauge is based on the principle that the measured hydrostatic pressure is proportional to the height of the liquid.

The pressure sensor is used to convert the pressure signal into an electrical signal, which is converted into a standard current signal or digital signal after temperature compensation and linear calibration.

When it is put into the liquid to be tested in a certain depth, the pressure

received by the sensor diaphragm is: p = p0 + ρgh(p0:Atmospheric pressure on the liquid surface)

The input level gauge adopts imported high quality silicon piezoresistive sensor or ceramic sensors, air leading cable structure, reliable sealing technology and modeling design, and these make it have excellent stability and stronger applicability.

With simulation type, digital type RS485 output, the hydrostatic level transmitter is widely used in every field and industry level measurement.

HCDB-30 Submersible Hydrostatic Level Transmitter | HCCK Water Level Sensor High Accuracy

HCCK – Hebei Huachuang M&C Technology Co., Ltd.

Introduction to HCDB-30 Submersible Hydrostatic Level Transmitter

The HCDB-30 Simple Submersible Hydrostatic Level Transmitter by HCCK (Hebei Huachuang M&C Technology Co., Ltd.) is a high-precision water level measurement device designed for reliable and long-term monitoring of liquid levels in tanks, reservoirs, wells, and industrial systems.

Built with advanced hydrostatic pressure sensing technology, the HCDB-30 level transmitter converts liquid pressure into accurate electrical signals, enabling precise and stable level measurement in harsh environments.

With its compact design, high durability, corrosion resistance, and stable output, the HCDB-30 has become a trusted solution for industrial automation, water treatment facilities, environmental monitoring, and groundwater management.


A submersible hydrostatic level transmitter is a sensor designed to measure the depth of liquid by detecting the pressure exerted by the liquid column above it.

The deeper the sensor is submerged, the greater the hydrostatic pressure. The transmitter converts this pressure into an electrical signal such as:

  • 4–20mA

  • 0–5V / 0–10V

  • RS485 / Modbus

This signal is then used by monitoring systems or PLC controllers to display and manage liquid levels accurately.


1. High Precision Measurement

The HCDB-30 hydrostatic level transmitter provides highly accurate liquid level monitoring with excellent stability. This ensures reliable data for industrial processes and environmental applications.

2. Durable Stainless Steel Construction

The transmitter body is made of high-quality stainless steel, making it resistant to corrosion, pressure, and harsh environmental conditions.

3. Fully Submersible Design

The HCDB-30 is specifically designed for continuous underwater operation, making it ideal for deep wells, water tanks, reservoirs, and groundwater monitoring.

4. Stable Output Signal

Supports standard industrial output signals such as:

  • 4-20mA current output

  • Voltage signal output

  • Digital communication options

This ensures easy integration with industrial control systems.

5. Long-Term Reliability

The HCDB-30 level transmitter is engineered for long-term stability with minimal drift, reducing maintenance costs and ensuring consistent performance.


Below are typical specifications for the HCDB-30 Simple Submersible Hydrostatic Level Transmitter:

Parameter Specification
Product Model HCDB-30
Brand HCCK
Manufacturer Hebei Huachuang M&C Technology Co., Ltd.
Measuring Range 0–1m to 0–200m (customizable)
Accuracy ±0.25% FS / ±0.5% FS
Output Signal 4–20mA / Voltage
Power Supply 12–36V DC
Operating Temperature -20°C to 80°C
Protection Level IP68
Material Stainless Steel
Application Medium Water, clean liquids

The HCDB-30 water level transmitter is widely used across multiple industries.

Water Treatment Plants

Used for monitoring water levels in reservoirs, tanks, and treatment systems to ensure efficient water distribution and treatment processes.

Groundwater Monitoring

Ideal for wells and groundwater measurement in environmental and hydrological monitoring projects.

Industrial Process Control

Ensures precise liquid level control in industrial tanks, storage systems, and process vessels.

River and Dam Monitoring

Provides accurate water level data for flood control systems and environmental monitoring.

Agricultural Irrigation Systems

Used in irrigation reservoirs and water management systems to optimize water usage.


Choosing the HCDB-30 Simple Submersible Hydrostatic Level Transmitter from HCCK (Hebei Huachuang M&C Technology Co., Ltd.) offers several advantages:

✔ High measurement accuracy
✔ Long-term stability and reliability
✔ Robust stainless steel housing
✔ IP68 waterproof protection
✔ Easy installation and maintenance
✔ Cost-effective solution for level measurement

HCCK is recognized globally for its advanced sensor technology and industrial instrumentation, delivering dependable solutions for level measurement and process control.


Installing the HCDB-30 transmitter is simple:

  1. Submerge the sensor into the liquid medium.

  2. Secure the cable to prevent movement.

  3. Connect the output cable to the controller or monitoring system.

  4. Configure the measurement range if required.

Once installed, the transmitter continuously measures hydrostatic pressure and provides real-time liquid level data.


To ensure long-term performance:

  • Avoid mechanical damage to the cable.

  • Periodically check electrical connections.

  • Clean the sensor if used in contaminated liquids.

  • Verify calibration annually if used in critical measurement systems.


What liquids can HCDB-30 measure?

The HCDB-30 is primarily designed for water and non-corrosive liquids.

Is HCDB-30 suitable for deep wells?

Yes, it supports measurement ranges up to 200 meters, making it ideal for deep well monitoring.

Does HCDB-30 support industrial control systems?

Yes, it supports standard industrial output signals like 4-20mA, making it compatible with PLC and SCADA systems.

Is the transmitter waterproof?

Yes, the HCDB-30 has IP68 protection, allowing full submersion for continuous operation.


If you are looking for a reliable and high-precision water level sensor, the HCDB-30 Simple Submersible Hydrostatic Level Transmitter by HCCK is the ideal solution.

It offers accurate measurement, rugged durability, and easy integration, making it suitable for a wide range of industrial and environmental applications.

For pricing, technical consultation, or bulk orders, contact an authorized distributor or instrumentation supplier today.

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