Gas Phase Oxygen Measurement/GPO Systems support oxygen measurement in industrial gas-phase applications where oxygen levels must be monitored in process gases or vessel headspace environments.
These Mettler Toledo GPO Systems pair amperometric gas-phase oxygen sensors with compatible GPO transmitters to provide an oxygen measurement value for process monitoring.
These systems are suited for applications such as N2 blanketing, inertization, and off-gas monitoring, where gas-phase oxygen measurement helps facilities maintain visibility into process conditions.

The family-level structure allows the sensors and transmitters to be presented together while keeping them clearly separated by product type.
Key Characteristics
- Designed for gas-phase oxygen measurement applications
- Uses amperometric gas-phase oxygen Sensors with compatible GPO Transmitters
- Supports oxygen measurement in process gas and headspace monitoring applications
Ideal Applications
- N2 blanketing applications
- Inertization processes
- Off-gas monitoring applications
Product Family Includes
- Gas-phase oxygen Sensors
- GPO Transmitters for Gas Phase Oxygen Probes
- Compatible gas-phase oxygen measurement configurations
Industries Served
- Chemical Processing
- Pharmaceutical Manufacturing
- Biotechnology/Bioprocessing
- Food and Beverage Processing
- Brewery and Beverage Gas Monitoring Applications
- Industrial Gas Handling and Inerting Applications




