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LMK 307 Stainless Steel Level Transmitter

LMK 307 Level Transmitter: Accurate, continuous level measurement for diverse applications including water, wastewater, fuel, and oil. Features a flush-mounted ceramic sensor for precision. Ideal for drinking water systems, groundwater monitoring, stormwater systems, wastewater treatment, water recycling, dumpsite monitoring, fuel storage, tank farms, and biogas plants. Ensures reliable and efficient monitoring across various fluid types.

LMK 307 Stainless Steel Probe Product Parameters

  • Pressure Ranges: 0-4 mH2O to 0-250 mH2O
  • Output Signal: 2-wire 4-20 mA, 3-wire 0-20 mA/0-10 V
  • Accuracy: Good linearity and excellent long-term stability
  • Electrical Connections: Options for different cables and elastomers
  • Process Connections: 27 mm diameter, easy handling
  • Media Compatibility: Suitable for gas and dust, customer-specific versions available
  • Special Features: Intrinsically safe (Ex ia), SIL 2 compliant, customizable pressure ranges


Product Highlights

The LMK307 Level Transmitter is a versatile and reliable instrument designed for accurate measurement of liquid levels. With a nominal pressure range from 0 … 4 mH2O up to 0 … 250 mH2O, it caters to a wide range of applications. The transmitter offers two output signal options: a 2-wire configuration with a 4 … 20 mA signal, and a 3-wire setup with a choice between 0 … 20 mA and 0 … 10 V signals. Its compact diameter of 27 mm makes it suitable for installations with limited space. The LMK307 boasts good linearity, ensuring precise and consistent measurements, while its excellent long-term stability ensures reliable performance over extended periods. Handling the transmitter is effortless, adding to its user-friendly nature. Furthermore, the LMK307 is available in various optional versions, including an IS-version that is intrinsically safe for gas and dust environments, and it is compliant with SIL 2 (Safety Integrity Level) according to IEC 61508 / IEC 61511 standards. Customers can also choose from different types of cables and elastomers, as well as request customised versions to meet their specific pressure range requirements.


  • Water
    • Drinking water systems
    • Groundwater monitoring
    • Storm water systems
  • Sewage
    • Wastewater treatment
    • Water recycling
    • Dumpsite
  • Fuel and Oil
    • Fuel storage
    • Tank farm
    • Biogas plants

To download the latest datasheet click here: LMK 307

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