What is one function of dive computers during a dive?

Dive computers play a crucial role in managing a diver's safety and dive experience. One of their primary functions is to help divers stay within no-decompression limits. These limits are established to minimize the risk of decompression sickness, which occurs when a diver ascends too quickly after spending time at depths.

The dive computer continuously monitors the diver's depth and time underwater, calculating the amount of nitrogen absorbed by the body. It provides real-time data on the current limits and the remaining time a diver can stay at a certain depth without requiring mandatory decompression stops during ascent. By doing so, it effectively assists in planning safe dive profiles.

This function is vital because every dive presents unique conditions, and having a reliable device to track no-decompression limits allows divers to focus on exploring while ensuring their safety.