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Contacting Conductivity/Resistivity Sensors


    Product Information


    • Drinking water
    • Pure water/power
    • Industrial water.

    These sensors are manufactured to exacting tolerances using high quality, rugged materials for demanding applications,including ultra-pure water, clean-in-place (CIP), and boiler/condensate monitoring. Each sensor is tested to determine its unique, absolute four-digit cell constant,
    Additionally, each sensor has a Pt 1000 RTD temperature element built in for exceptionally fast response to changes in temperature with ±0.1°C accuracy.

    These enhanced performance sensors measure from 0.057 μS/cm or 18.2 MΩ (theoretically pure water) up to 200,000 μS/cm.

    Feature titanium electrodes and a compression fitting for universal installation with up to 4 inches (102 mm) insertion depth. The 1/2-inch or 3/4-inch male NPT compression fitting are o@ered in Kynar® (PVDF) or 316 stainless steel. A longer version of this sensor is available for use with a 316 stainless steel ball valve hardware assembly to insert/retract the sensor from the process without stopping the flow. The longer version can also be used for insertion through a compression fitting. Maximum insertion depth is 7 inches (178 mm).

    These sensors have graphite electrodes and 3/4-inch male NPT threaded Ryton® bodies. Mount into a standard 3/4-inch pipe tee, 1-1/2-inch Hach union hardware (for 10 Cell Constant sensor only), or fasten onto the end of the pipe.

    Designed for monitoring boiler water and condensate in return lines. They have 316 stainless steel electrodes and threaded bodies (3/4-inch male NPT). They can be fastened into a boiler wall using a 3/4-inch weldolet or mounted into a process line using a standard 3/4-inch stainless pipe tee.

    Feature 316 stainless steel electrodes and an integral 1-1/2-inch or 2-inch flange. These sensors can be installed using standard sanitary mounting hardware.


    • High performance design
    • Resistivity and conductivity measurement capability
    • Versatile mounting styles
      Compression fitting sensors
    • Non-metallic general purpose sensors
    • High pressure and high temperature sensors
    • Sanitary clean-in-place (CIP) style sensors
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