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HACH COMPANY was established in 1947, in Ames, Iowa, USA. For more than 60 years, Hach has been the world market leader for Analytical Instrumentation for Complete Water Analysis, providing solutions for lab, process and field.

In 2002, GLI, a leading US manufacturer of process electro-chemistry analytical instruments, became part of the Hach Company family.

Water analysis has to be right. Our customers deserve complete, reliable solutions that they can be fully  confident in. Hach is your answer. We make water analysis simpler

Conductivity Inductive Sensors

3700 Series

Conductivity Inductive Sensors


  • Built-In Temperature Compensation
  • Low Maintenance Design
  • Versatile Mounting Styles (Immersion, Insertion, Union, Sanitary)
  • 3A Sanitary Approval


Measuring RangeFrom 0~200 to 0~2,000,000 µS/cm
Temperature Range10 to 200°C (14 to 392°F); limited only by sensor body material and mounting hardware
Wetted PartsPolypropylene, PVDF, PEEK® or PFA Teflon®
Cable Length6 m (20 ft.) long


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