What is the function of a dive computer?

A dive computer is an essential tool for divers, as it plays a crucial role in monitoring key factors that affect diving safety. Its primary function is to keep track of depth, time spent underwater, and no-decompression limits. These parameters help divers manage their ascent profiles and avoid decompression sickness, commonly known as "the bends."

By continuously measuring depth and elapsed time, the dive computer calculates real-time no-decompression limits, guiding divers to make safe decisions about how long they can remain at various depths without needing to perform mandatory safety stops during ascent. The real-time feedback helps divers stay within safe limits while allowing for a more enjoyable and less stressful diving experience.

While dive computers can also incorporate features that assist with navigation or tracking underwater speed, these are not their primary roles. The main function remains centered on safety management through depth and time monitoring. The focus on monitoring and ensuring adherence to safe diving practices is what makes dive computers indispensable for divers of all levels.