Analox O2EII Pro Nitrox Analyzer
The O2EII Pro is the same as the O2EII but comes with the following additions:
New color theme
The addition of the Hose Barb now allows the unit to be used while checking air quality at the tank or while the user is connected to their first stage regulator (via their BCD's low-pressure inflator).
The O2EII Pro is a highly accurate device and a must have for any scuba diver, the unit comes with a 3 year graded sensor warranty and has an expected sensor life of 4 to 5 years in air.