N2iton 3 Access Console Computer has a large easy to read primary dive information and numbers so you can concentrate on the task at hand and easily monitor your dive profile information. What's important is what you see: Dive Time that has Elapsed, No-Decompression Time Remaining, Current and Maximum Depth, Date, Time and Water Temperature Computer has three users adjustable safety factor levels, large easy to read graphs for ascent rates, N2 and O2 levels. Battery changes are needed only everythree years on average and the computer uses a CR2032 battery which is easy to find almost anywhere. Low visibility, or night diving is not a problem with the back lit screen five second LCD, which is visible in all light conditions. Simple intuitive operation for setting one to three Nitrox mixes one for range of 21-50% and two for 21-99%. Computer allows gas switching with a push of a button. If deep diving, with decompression is what you do, the computer will give you the ability to make decompression stops as deep as 90 ft, or deeper safety stops. The computers maximum depth is 328 feet (100 meters) in dive mode and 656 feet (200 meters) in gauge mode. Log book function will hold up to 30 hours (or 60 dives) based on 30 second profiling intervals. The N2iton screen has multiple visible warnings to help you control your dive, violations of ascent rate, no decompression, decompression stops & ceiling depth, nitrox, and PO2 are all displayed to warn you of your limit