Pyxis corrosion sensors

Pyxis CR-200 Corrosion Sensor

A valuable tool that can be easily and affordably deployed to provide both general and localised corrosion measurements

The Pyxis CR-Series corrosion rate sensors are ideal for cooling and process water treatment monitoring where robustness and affordability are a must. The sensors utilise the linear polarisation resistance (LPR) method to produce a raw signal.


  • Anti-Electromagnetic Interface (anti-EMI) design with stainless steel sensor body
  • Modbus support with isolated RS-485 communication
  • 4–20mA output
  • Battery life up to 1 year using ultra-low power design & smart power management
  • Three O-ring grooves positioned on sensor body for insertion depth control
  • Bluetooth® connectivity to uPyxis® App
  • Ultra-low corrosion rate down to 0.001MPY
  • Accurately measure generalised corrosion & localised corrosion rate


The CR-200 is a battery powered, portable and Bluetooth enabled LPR corrosion sensor for true wireless connectivity. The CR-200 makes it possible to monitor corrosion at multiple test points, avoiding the complications of running power and signal output wires from the sensor to a controller and/or display unit or data logging unit. The CR-200 sensor can store up to 6-months of data within its PCB that can be wirelessly transferred as a CSV file using the uPyxis APP for Mobile or Desktop devices.


The CR-300 is a standalone sensor that can be powered by a 24 VDC power source such as an existing controller, PLC or DCS network. The output data signals for both general and localised corrosion are offered in both 4- 20mA and RS-485 modbus using the provided 8 pin cables with quick adapters. The CR-300 will come with one MA-CR Pyxis Bluetooth adapter allowing the unit to be wirelessly configured and viewed via the uPyxis APP for mobile or desktop devices.


Key information

ModelPowerOutputData storageMax range
Bluetooth 4.1
24VDC, 2W
4-20 mA
& RS-485

Product series


Typical applications

  • Cooling & process water monitoring
  • Mill supply, once through and closed loop systems
  • Domestic water monitoring



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

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01438 759 595

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