Analox O2EII PRO - Nitrox Analyser

The O2EII Pro nitrox (nitrogen and oxygen) analyser comes with a hose barb which allows the unit to be used while checking air quality at the tank or while the user is connected to their first stage regulator. 
Please note the O2EII Pro nitrox analyser does not come with a BCD flow restrictor. 
The unit comes with a three-year graded sensor warranty and has an expected sensor life of four to five years in air. 

Range: 0.1-100% O2 
Necessary battery: 9V