Stork Solutions

LMK 387 H Stainless Steel Level Transmitter with HART Communication

Introducing the LMK 387 H Stainless Steel Probe: The Ultimate Solution for Level and Gauge Measurement in Wastewater, Sludge, and Water Courses.

Designed with mechanical robustness in mind, our probe features a flush ceramic diaphragm, ensuring effortless disassembly and cleaning during servicing. With a sleek outer diameter of just 22 mm, it easily fits into 1″ pipes and confined installation spaces, making installation or retrofitting a breeze.

Choose from our range of options, including the intrinsically safe version (zone 0) and the version equipped with a temperature signal. Experience reliable and accurate measurements with the LMK 387 H Stainless Steel Probe.

  • Range: from 1 mH2O up to 100 mH2O
  • Outputs: 4 … 20 mA
  • Main Features: IS-Version Ex ia, diaphragm ceramics 99.9% Al2O

Product Highlights

The LMK387H Level Transmitter is a high-performance instrument designed for precise pressure measurement in various applications. It offers a wide nominal pressure range, starting from 0 to 1 mH2O and going up to 0 to 100 mH2O. The transmitter provides a 2-wire output signal of 4 to 20 mA, with the flexibility to accommodate other output signals upon request. Notably, it boasts several special characteristics, including a compact diameter of 22 mm, HART® communication (revision 7) for enhanced connectivity and control, and the ability to set offset, span, and damping parameters. The diaphragm is constructed from 99.9% Al2O3 ceramics, ensuring exceptional durability and longevity. The LMK387H Level Transmitter is particularly suitable for wastewater applications, thanks to its excellent long-term stability. It also offers optional versions with a titanium housing, making it resistant to harsh environments. Furthermore, it features an IS-version (Ex ia) that is intrinsically safe for use in gas and dust atmospheres. The transmitter holds a drinking water certificate compliant with DVGW and KTW regulations, ensuring its suitability for water-related applications. Additionally, it incorporates a Pt 100 temperature element and provides various options for elastomers, enabling customisation based on specific requirements. Overall, the LMK387H Level Transmitter combines robustness, versatility, and customisable features, making it a reliable choice for accurate pressure measurement across diverse industries.


  • Water
    • Groundwater and level monitoring
  • Sewage
    • Wastewater treatment
    • Water recycling
  • Fuel and Oil
    • Tank battery
    • Biogas plants

To download the latest datasheet click here: LMK 387 H

Additional information


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