Stork Solutions

DCL 551 Stainless Steel Probe RS485 Modbus RTU

Introducing the DCL 551 Stainless Steel Level Probe, specifically engineered for accurate hydrostatic level measurement in challenging environments such as sewage, viscous substances, and pasty media. Its core component features a durable capacitive ceramic sensor, ensuring reliability even in high-pressure conditions.

Equipped with an RS485 interface, this level probe seamlessly integrates with the widely adopted Modbus RTU communication protocol. Modbus RTU, recognised as an open protocol in industrial communication, facilitates efficient data exchange between a master device and up to 247 slave devices. The data transfer occurs in a binary format, ensuring fast and secure communication.

Trust the DCL 551 Stainless Steel Level Probe for precise, efficient, and dependable level measurement in diverse applications.

  • Range: from 40 cmH2O up to 200 mH2O
  • Outputs: RS485 with Modbus RTU protocol
  • Main Features: diaphragm ceramics Al2O3 99,9%, diameter 39.5 mm, reset function

Product Highlights

The DCL551 Pressure Transmitter is a versatile and reliable device designed for accurate pressure measurement across a wide range of applications. With a nominal pressure range of 0 … 40 cmH2O up to 0 … 200 mH2O, it offers precise readings for various pressure levels. The transmitter utilises an RS485 output signal with Modbus RTU protocol, enabling seamless integration with different systems. One of its standout features is its compact diameter of 39.5 mm, making it easy to install in tight spaces. Additionally, the DCL551 exhibits excellent long-term stability, ensuring consistent and reliable performance over extended periods. This transmitter is specifically well-suited for challenging environments like sewage systems, as well as for measuring viscous and pasty media. Moreover, it offers a convenient reset function, simplifying calibration and adjustments. For added customisation, an optional version with a diaphragm made of ceramics Al2O3 99.9% is available, catering to specific requirements. The DCL551 Pressure Transmitter combines precision, durability, and adaptability to deliver accurate measurements in a wide range of applications.


  • Sewage
    • Wastewater treatment
    • Water recycling
  • Fuel and Oil
    • Level monitoring in open tanks with low filling heights
    • Fuel storage
    • Tank farms/ biogas plants

To download the latest datasheet click here: DCL 551

Additional information


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