What role does a dive computer play for Nitrox divers?

A dive computer is an essential tool for Nitrox divers because it manages dive profiles and calculates no-decompression limits (NDL) specific to the gas mixture being used. Nitrox typically has a higher oxygen content than regular air, which allows for longer bottom times at certain depths, but also requires careful monitoring due to the risk of oxygen toxicity. The dive computer takes into account the diver's depth, time underwater, and the specific oxygen content of the Nitrox blend to provide accurate information about safe dive limits and ascent rates.

By constantly monitoring the diver’s depth and time spent underwater, the computer ensures that the diver stays within safe parameters to avoid decompression sickness. This functionality is especially crucial for those using Nitrox, as divers must adhere to specific dive tables or profiles that differ from those used for regular air dives. Other options do not effectively represent the primary role of a dive computer in this context; they involve functions that are either unrelated to dive safety or focus on aspects not directly managed by a dive computer.