Zirconia Oxygen Sensors

A ZrO2 oxygen sensor, also known as a zirconia oxygen sensor, uses a zirconium dioxide sensing element to measure oxygen concentration in gases. These sensors are suitable for combustion control, emissions monitoring, industrial process control and other demanding oxygen measurement applications.

These sensors operate between -100°C and 250°C (up to 400°C for probe types) and provide fast response times—under 4 seconds for fast-response models.

Models like the Screwfit feature threaded connections (M18x1.5 or 3/4” NPT) that allow easy and secure mounting in industrial environments.

Yes, their sturdy stainless steel bodies and resistance to vibration (5g repetitive, 30g incidental) ensure durability in tough conditions like boiler exhaust systems.

Thanks to non-depleting technology, these sensors can last up to 10 years, reducing maintenance and ensuring reliable long-term oxygen monitoring.

They’re suited for harsh settings such as combustion control in boilers, emissions monitoring, and air quality analysis, providing accurate real-time oxygen data.

No reference gases are needed. Calibration is simple using fresh air or known gas mixtures, making field maintenance cost-effective and straightforward.

Yes, they withstand vibrations up to 30g and function across a broad temperature range (-100°C to 400°C), ideal for high-temperature exhaust monitoring and other demanding applications.

They measure oxygen levels from 0.1% up to 100% O₂, with partial pressure ranges between 2 mbar and 3 bar.

They accurately measure oxygen levels from 0.1% up to 100% O₂, with partial pressures ranging from 2 mbar to 3 bar.

A zirconia oxygen sensor kit may combine the oxygen probe with interface electronics, providing the power, control and output connections required for integration with a host system. The exact configuration depends on the selected product.