Siemens SITRANS LR120

Product Code:


Siemens SITRANS LR120 2021 Engineers' Choice Awards

In the Process Control - Sensors/Transmitters category, the SITRANS LR100 compact radar level transmitter was named the winner.

SITRANS LR120 is a compact radar transmitter for continuous level measurement of liquids and solids to a range of 30 m (98.4 ft).


  • Bluetooth connectivity for easy setup with SITRANS mobile IQ
  • Chemically resistant PVDF enclosure
  • HART 7.0 or Modbus RTU (in preparation) communication for intelligent integration into your application
  • W band FMCW radar yields narrow beam with small antenna for superior performance in applications with obstructions
  • Approved for open air applications outside of a tank
  • 2 mm accuracy and zero near range distance yields optimum inventory management capability
  • Submergence shield accessory prevents build up on sensor during flooding conditions
  • Hazardous area variants available for safe use in explosive gas or dust environments

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