The Suunto D4i is the new computer replacing the D4 and mosquito. With air integration, and improved data capability it is a full decompression dive computer that doubles as a cool looking dive watch.
The Suunto D4i manual can be downloaded here
The easy-to-read D4i dot matrix display and electro-luminescent backlight mean your dive-critical information – including depth, dive time, and decompression status – will all be shown clearly.Multi-mode versatilityIn both Air and Nitrox mode, the clear, easy-to-read suunto screen can display your current and maximum depth, current time, dive time, decompression time, and temperature. Audible and visual depth and time alarms warn you when it's time to start your ascent. In Nitrox mode, you can increase your time underwater by adjusting the oxygen content of your gas between 21% and 50% and adjust your PO2 limit between 0.5 and 1.6 bar.
Dedicated Freedive modeWith its innovative freedive functions and dedicated freedive mode, Suunto D4i is also perfect if you're serious about breath-hold diving. Programmed to sample depth three times a second, Suunto D4i records highly accurate data on the true depth reached.Flexible decompressionUsing the Suunto Deep Stop RGBM algorithm, the Suunto D4i enables continuous decompression for optimal ascent time. For deeper dives, the Deep Stop option adds further protection with a series of deep stops between your maximum depth and ceiling.
Plan and reviewYou can test upcoming dives and view no-decompression time data for different depths before getting in the water with the built-in dive planner. When the dive is over, use optional Suunto Dive Manager PC software to transfer your dive data to your computer for further analysis and to maintain a detailed logbook featuring graphical representation of all your dives.