Nuvair Pro O2 Analyzer – Handheld


Easy-to-operate, extremely accurate and stable, the Nuvair Pro O2 is preferred by commercial, military, technical and advanced recreational divers using nitrox. Our water- and impact-resistant case is designed for everyday use in the marine environment. The Pro O2 is also popular with medical, welding, and other industries not related to diving.

To change the battery or sensor, simply remove four screws to have easy access to these user-changeable components. The Nuvair Pro O2 Analyzer can be placed in-line with your compressor during mixed-gas production or used as a standalone unit for testing mixed gas and nitrox individual scuba tanks or storage cylinders. We offer a wide range of accessories for adapting to compressors and diver BC (buoyancy compensator) power inflators. All Nuvair Pro O2 units are built and tested in-house, and are ready to use upon receipt.

Never expose gas sensors to pressure or you may cause damage and/or false readings. Damaged sensors will not provide accurate gas analysis. Inaccurate gas analysis can lead to serious personal injury or death. Most gas analyzers can be used to analyze a regulated gas sample flow, the contents of a gas cylinder, or the flow from a regulator. The flow rate of gas must equal 1-5 L/min. To produce this flow, a Flow Restrictor and Regulator may be required.


Maximum Gas Flow Rate: 0.5-2 L/min (~1bar)
Display Accuracy: ± 1%
Sensor Type: Electrochemical
Range: 0-100% oxygen
Response Time: Response time <6 seconds 90% of final value
Operating Temperature: 32° to 104°F (0° to 40°C)
Storage Temperature: 32° to 122°F (0° to 50°C)
Operating Humidity: 0-100% rh, non-condensing
Power: Wall plug-in, 9-Volt battery or Lithium Ion (optional)
Dimension: 4-1/8 x 2-1/2 x 1-3/4 in (10.5 x 6.2 x 4.4 cm)
Weight: 7 ounces (200 grams)
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