Suunto Gekko can be used with both air and nitrox, and it is designed to give the specifics of any diving situation, including decompression, at a glance.
Suunto Gekko uses the Suunto Reduced Gradient Bubble Model (RGBM) decompression model and has a user-replaceable battery and adjustable metric/imperial units.
Suunto Gekko is equipped with a super bright phosphorescent display that can be charged with a dive torch. This ensures that you can easily view the display in dark conditions for extensive periods of time. You can wear Suunto Gekko as a wrist unit, or mount it on Suunto's Combo consoles.