Pyxis corrosion sensors

Pyxis RT-100 PRISM Inline Refractometer

High pressure & high temperature, affordable sensor for general and localised corrosion rate monitoring

The CR-301 corrosion rate sensor is ideal for cooling and process water monitoring. In addition to being reliable and affordable the sensor utilises the linear polarisation resistance (LPR) method to produce a raw signal. The raw signal is conditioned, amplified and digitised inside the sensor. Moreover, this avoids interference from the raw signal caused by long distance wiring. Our corrosion sensors measure sample water conductivity directly. The sensors also measure electrochemical noise. The measured noise data is used to calculate an index to quantify the localised corrosion rate, also referred to as pitting.


  • Anti-Electromagnetic Interface (anti-EMI) design with titanium sensor body
  • RS-485 Modbus output
  • 2x 4–20mA outputs (general & localised corrosion)
  • Integrated cooling fin design for high temperature applications
  • Bluetooth® connectivity to uPyxis® App when used with the MA-CR adapter
  • Default 4–20mA output scales and alloy factors assigned for selected metallurgy via uPyxis®
  • Customisation of alloy factor and upper MPY/Index (20mA) scale as desired via uPyxis®
  • Ultra-low general corrosion rate detection down to 0.001MPY


Typical applications

  • High temperature applications
  • High pressure applications
  • Geothermal – process
  • District energy – heating
  • Oil & gas – process & produced water

Product information



Custom build solutions

Redefine simplicity and flexibility in cooling tower solutions with our plug-and-play service that delivers rapid installation.

We offer standard layout that serves as a solid foundation but we can be customise to meet the unique needs of any client site. We tailor the build to achieve optimal performance.

Our custom builds are popular as a comprehensive solution that's wired and seamlessly integrated meeting any site requirements. Email us today to learn more about our bespoke custom built solutions to speed up your installation and reduce operation or project downtime.


We specialise in delivering tailored product training to empower your team and enhance operational efficiency. Whether you prefer on-site sessions, at your company's location or the convenience of video conferencing, we've got you covered.

Our focus revolves around installation best practices, ensuring seamless product connectivity, and optimising maintenance procedures. Take the first step towards maximising your team's potential. Email us today to learn more about our bespoke training offerings, check availability, and embark on a journey to enhance your team's expertise.

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Sensys Ltd

Head Office
24 Vision Park
Preston Place
Upper Caldecote
SG18 9GQ

what3words: ///uptown.wisley.guests

01438 759 595

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