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Digital conductivity sensor
Indumax CLS50D

Memosens toroidal conductivity sensor for chemical applications

  • ©Endress+Hauser
  • ©Endress+Hauser
  • ©Endress+Hauser
  • The conductivity of a liquid can be measured using the conductive or toroidal measuring principles. This video shows what it is about and how these measuring principles work.

Indumax CLS50D is a digital inductive conductivity sensor for standard, hazardous and high-temperature applications. Benefit from high chemical resistance and long durability thanks to robust materials (PFA, PEEK). Moreover, it is insensitive to soiling and performs reliable and repeatable even in harsh and aggressive media. Thanks to Memosens, CLS50D combines maximum process and data integrity with simple operation. It resists corrosion and moisture and facilitates predictive maintenance.


  • High durability and chemical resistance even under harsh conditions

  • Dirt-repellent materials and large sensor opening avoid soiling

  • Wide temperature range and highly resistant materials make the sensor suitable for virtual any application

  • Reliable values thanks to active connection monitoring

  • Easy wiring over long distances without impact on the measurement accuracy

  • Logging of sensor-specific data for easy traceability

  • Approved for hazardous area use

Field of application

Indumax CLS50D measures toroidal conductivity in:

  • Chemicals:
    - Concentration measurement of acids and bases
    - Quality monitoring of chemical products in tanks and pipes

  • Food & Beverages:
    - Phase separation of product/product mixtures in pipe systems

  • Life Sciences:
    - Phase separation of product/product mixtures in pipe systems

  • Wastewater industry:
    - Inlet monitoring

With its international explosion protection approvals, such as ATEX, FM, CSA, NEPSI, it is suitable for hazardous areas.

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