O2EII Pro nitrox analyser

O2EII Pro nitrox gas analyser

The O2EII Pro nitrox analyser (the successor of the O2EII) is a NATO codified portable oxygen and nitrogen checker, generally considered to be the most reliable nitrox analyser on the market.

Make sure your divers know the gas mix in their tanks and are prepared for a safe dive with the O2EII Pro nitrox gas analyser.

We donated a O2EII Pro nitrox analyser to the Defence Medical Services Diving Club, to allow injured service personnel to check their gas mix and explore the underwater world.

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Key features of the O2EII Pro nitrox gas analyser

Gases monitored

Where can it be used?

The O2EII Pro nitrox gas analyser can be used anywhere.

Technical information

Nato Stock Numbers

NATO stock numbers for the O2EII Pro nitrox analyser

Spares and accessories

Contact us if you would like to order or need any additional information about our spares and accessories range

NATO stock numberReferenceDescription
6615-99-148-5260 9100-9220-9B


O2EII sensor
(Note: Sensors should only be purchased when required. Analox Military Systems do not recommend that spare sensors are bought when purchasing your O2EII Pro nitrox analyser and cannot credit sensors if incorrect orders have been placed.)

  2836-HYGRO Hygro-thermometer


Sensor saver plug (push-in type)

  M02-422 Spare O2EII dome


EII peli case with foam insert

  AMS brochure   AMS diving brochure

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