Carbon Monoxide · CO

Odorless, tasteless and invisible, carbon monoxide can prove lethal to divers in small quantities. Nuvair carbon monoxide analyzers are designed to detect levels of CO that could be harmful to a diver before the gas reaches the diver. Our CO analyzers can be attached to a high pressure compressor for monitoring tank fills or in-line on a low pressure compressor that is providing surface supplied air to a diver. The analyzers offer both visual and audible alarms to warn the compressor operator of potential CO hazards in the breathing air being supplied. We have two styles of CO analyzers that can be portable or panel mounted directly to the compressor depending on your requirements.


  • Handheld, panel mount and waterproof box styles available
  • LCD display
  • Two user-programmable audible and visual alarms
  • Electromechanical sensor
  • 1 ppm resolution
  • Three power options available on some models
  • Capable of shutting down compressor at set alarm with optional relays

WARNING: Never expose gas sensors to pressure or you may cause damage and/or false readings. Damaged sensors will not provide accurate gas analysis. 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. A faulty Flow Restrictor can lead to a false analyzer reading. Flow Restrictors should be regularly tested with a Flow Meter. Inaccurate gas analysis can lead to serious personal injury or death.

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