The InPro 6850i Dissolved Oxygen Sensors provide in-line oxygen measurement using amperometric/polarographic measurement technology.
The 12mm sensor design accommodates installation in large and small process vessels, with multiple insertion lengths available for different vessel configurations.
Constructed with 316L stainless-steel and a PTFE membrane, the InPro 6850i is designed for process environments that require CIP, steam sterilization, or autoclaving.

Digital Intelligent Sensor Management (ISM) technology supports sensor diagnostics and management for pharmaceutical, life science, fermentation, and chemical process applications.
Key Characteristics
- Amperometric/polarographic dissolved oxygen measurement technology
- Digital Intelligent Sensor Management (ISM) sensor design
- Measurement range of 0–100% oxygen saturation
- Detection limit of 6 ppb
- 12mm sensor diameter with Pg 13.5 process connection
- 316L stainless-steel wetted construction
- PTFE wetted membrane material
- CIP-resistant and sterilizable/autoclavable construction
- Straight connector configuration
- Available in multiple sensor insertion lengths
Ideal Applications
- In-line dissolved oxygen measurement in process vessels
- Pharmaceutical and life science production
- Fermentation processes
- Cell growth monitoring
- Chemical process oxygen measurement
- Sterilizable and autoclavable process installations
Product Family Includes
- InPro6850i/12/070
- InPro6850i/12/120
- InPro6850i/12/220
- InPro6850i/12/320
- InPro6850i/12/420
Industries Served
- Pharmaceutical Manufacturing
- Biopharmaceutical and Life Science Production
- Biotechnology and Fermentation Processing
- Chemical Processing







