Product news
OXY-Flex – Oxygen Analyser
May 21, 2026
SST Sensing Ltd, a DwyerOmega brand and leading manufacturer of sensing technology, introduces the OXY-Flex oxygen analyser for accurate measurement of oxygen concentration in air and inert gas mixtures.
The OXY-Flex analyser is designed to measure oxygen concentration in air or inert gas mixtures in hard-to-reach areas and closed systems. Typical applications include combustion control, process oxygen monitoring, and environmental applications.
The SST’s OXY-Flex Oxygen Analyser is suited to applications requiring stable oxygen measurement at high temperatures. It operates in extreme conditions and measures oxygen concentration in air and gas mixtures across a wide temperature range from –100°C to +400°C.
Applications include combustion control in boilers fired by oil, gas, coal, or biomass, plus oxygen monitoring in incubators, composting systems, welding equipment, and other environmental monitoring installations.
At its core, the analyser uses a zirconium dioxide oxygen sensor that requires no reference gas, supporting long-term reliability and low maintenance. The sensor is housed in a robust stainless-steel probe with a sintered cap to withstand demanding environments while maintaining high accuracy.
A closed-loop system supports continuous monitoring, while a built-in heartbeat signal enables real-time fault detection. Configurable measurement ranges of 0.1–25% or 0.1–100% O₂ are available, with linear output options including 4–20 mA, 0–10 VDC, or RS232 serial communication for integration into industrial systems.
Key features
• Wide temperature operating ranges from -100°C to +400°C
• Robust zirconium dioxide sensor element for long-term reliability
• No reference gas required thanks to advanced sensor design
• Configurable measurement ranges: 0.1–25% or 0.1–100% O₂
• Linear output across the full measurement range
• Multiple output options: 4–20 mA, 0–10 VDC, or RS232 serial interface
The OXY-Flex Oxygen Analyser provides accurate, low-maintenance oxygen measurement for harsh and hard-to-reach installations. With a robust zirconia sensor, a wide operating temperature range, and flexible industrial outputs, it is well suited to combustion control, process applications, and environmental measurement where reliable O₂ data is critical.
For more information, please visit www.sstsensing.com
