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OXY-Flex Flue Gas Oxygen Analyzer

Oxy-Flex Oxygen Analyzer
Regular price $799.00 USD

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The Oxy-Flex Oxygen Analyzer is suitable for measuring 0-25% or 0-100% oxygen levels in exhaust pipes, smoke stacks and boiler flues. It can measure the oxygen concentration in air or gas mixtures with temperatures of -100 to 400⁰C.

The oxygen sensor element is mounted in the tip of the stainless steel probe and is protected by a stainless steel cap. The IP65 waterproof die-cast aluminium housing accommodates the electronics and provides the interface for the customer to connect to.


  • Zirconium dioxide technology provides long-life and low maintenance
  • Configurable outputs: 4-20mA and 0-10Vdc or RS232
  • Select output measuring ranges; 0-25% O2 or 0-100% O2
  • Can be calibrated in fresh air or in any known O2 concentration
  • Housed in a sealed die-cast aluminium housing
  • Works at temperatures from -100 to 400⁰C

For customers who need a 220mm probe or a narrower temperature range, different models of the OXY-Flex are available by special order. See the Sensor & Interface Selection Guide page 3-7.


  • Oxygen range (analogue output): 0.1-25% Oxygen, or 0.1-100% O2
  • Oxygen range (RS232 output): 0.1 and 100% 
  • Accuracy after calibration: 1% O2
  • Repeatability after calibration: 0.5% O2
  • Analogue 4-20mA: 0.01mA
  • Analogue 0-10Vdc: 0.01V
  • Digital RS232: 0.01% O2
  • Response Time: < 15 seconds
  • Warm Up Time (prior to sensor operation): 60 seconds
  • Supply voltage: 24VDC ± 10%
  • Supply current: 500mA max. at 24VDC
  • Digital Output: RS232
  • Housing temperature limits: -10°C to +85°C
  • Gas temperature limits (probe tip): -100°C to +400°C
  • Probe Length: 400mm (~15.75")


    • 90 days - See GasLab Terms and Conditions. 

    Mounting Options

    We recommend Swagelok 12mm full-bore adapters. Compression fit via outer nut. See manual for additional mounting instructions.

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    "Swift response and shipment. The product is easy to setup and use. It is just what I was looking for."

    - Shima Tomohiro

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