Stork Solutions

LMK 351 Screw-in Level Transmitter

Introducing the LMK 351 Screw-In Transmitter: The ideal solution for precise small system pressure and level measurement in containers. Engineered with a proprietary capacitive ceramic sensor element, the LMK 351 guarantees accurate readings and exceptional reliability. Its flush-mounted sensor enables seamless operation even with viscous and pasty media. To handle aggressive substances, we offer a PVDF pressure port and a diaphragm made of AI2O3 99.9%. Additionally, we provide an intrinsically safe version for enhanced safety. Explore  the limitless possibilities with the versatile LMK 351 Screw-In Transmitter and revolutionise your measurement capabilities.

  • Range: from 40 mbar up to 20 bar
  • Outputs: 4 … 20 mA/ 0 … 20 mA/ 0 … 10 V
  • Main Features: IS-Version Ex ia, diaphragm 99.9 % AI2O3

Product Highlights

The LMK351 Level Transmitter is a versatile device designed to accurately measure liquid levels across various applications. With a nominal pressure range spanning from 0 to 40 mbar up to 0 to 20 bar, it can accommodate a wide range of pressure requirements. The transmitter offers two output signal options: a 2-wire configuration providing a 4-20 mA signal, and a 3-wire configuration offering a flexible output range of 0-20 mA or 0-10 V, with the ability to provide other output options upon request. The LMK351 is equipped with a pressure port made of PVDF, making it suitable for measuring aggressive media, while an alternative version with a G 1 1/2″ pressure port is available for pasty and polluted media. Additionally, the transmitter offers optional versions, such as an IS-version Ex ia, which is intrinsically safe for gases and dust, and a diaphragm made of 99.9% AI2O3 (alumina). It can also be customised to meet specific customer requirements. The LMK351 Level Transmitter provides reliable and flexible level measurement solutions for a variety of challenging environments and applications.


  • Plant and machine engineering
  • Environmental engineering (water-sewage-recycling)
  • Fuel and oil
  • Viscous and pasty media

To download the latest datasheet click here: LMK 351

Additional information


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