Suunto HelO2 is an advanced mixed-gas dive computer for divers who use multiple gases like trimix with nitrox, and oxygen decompression. Featuring the Suunto Technical RGBM algorithm and a Multi-gas Dive Planner, this computer simplifies complex decompression diving and planning.
The algorithm introduces helium tissue groups into the propriety Suunto RGBM model and allows you to program eight gases as primary or secondary gases. Operating with oxygen contents between 8 and 100%, and a helium content of 0-92%. In addition to increasing decompression flexibility, the algorithm also reduces your decompression task load by removing the need to constantly monitor a slate and watch.
Shortest decompression is based on the Primary gases being used. when a gas is set to be secondary, this gas can be used on the dive, however it will not be used for decompression calculations until selected.
Suunto HelO2 Overview