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News Release

Foxboro PH12 Series pH and ORP Sensors

Foxboro PH12 Series sensors are made of the most durable materials and construction available.
Invensys Operations Management has released its Foxboro PH12 Series of precision electrochemical sensors, used with popular mounting accessories to measure pH and ORP. The sensors provide unique electrode technology in the widely used 12 mm form factor, as well as fast response, long life and high accuracy and stability. The rugged, easy-to-use devices are particularly well-suited for low- and high-temperature installations, and as a low-price, disposable option, they also eliminate maintenance costs.
Product overview:
The Foxboro PH12 model is made of the most durable materials and construction available. Unlike other 12 mm pH sensors, the Foxboro model incorporates a chemical resistant PEEK body, flat membrane sensing electrode and no metallic wetted parts. These features, combined with temperature ratings of 125 C (flat glass) or 140 C (domed glass), provide unrivaled ruggedness and lengthy service life. The Foxboro Model PH12 Series Sensor has been enhanced to include biocompatibility certification, 3-A sanitary certification, plastic (Kynar and CPVC) retraction/insertion assemblies and ball valve assemblies. In addition, a standard feature of the PH12 Series is a nonmetallic solution ground, allowing for sensor diagnostics in a cost-effective platform.
Key capabilities:
  • Durable PEEK body for exceptional strength and chemical resistance;
  • Longer service life and better resistance to the rigors of maintenance;
  • High temperature capability to 125°C greatly expands the range of applications for flat glass;
  • Rugged construction extends service life in the harshest of applications;
  • Non-metallic wetted parts mean immunity from most process fluids, greatly extending the service life;
  • Domed glass electrodes for very wide range (-25 to +125 C) and very high temperature (140 C);
  • Biocompatible and 3-A sanitary compliant, permitting for use in food, beverage, dairy and biopharmaceutical processes.
Where can I see more?
For more information about the Foxboro Model PH12 Series pH and ORP Sensors, please visit the Foxboro Measurement & Instruments pH and ORP site on

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About Invensys 

Invensys is a global technology company that works in partnership with a broad range of industrial and commercial customers to design and supply advanced technologies that optimise their operational performance and profitability. From oil refineries and power stations to mining companies and appliance manufacturers, Invensys’ market-leading software, systems and controls enable its customers to monitor, control and automate their products and processes, thereby maximising safety, efficiency, reliability and ease of use. To learn more about Invensys, visit

Invensys, the Invensys logo, Avantis, Eurotherm, Foxboro, IMServ, InFusion, Skelta, SimSci, Triconex and Wonderware are trademarks of Invensys plc, its subsidiaries or affiliates. All other brands and product names may be trademarks of their respective owners. 

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