What should you avoid doing with your dive computer while underwater?

Using a dive computer is essential for safe diving practices, providing crucial information such as depth, time, and no-decompression limits. Sharing your dive computer with a buddy while underwater is not advisable because dive computers are calibrated for individual diver profiles, including unique dive experiences, nitrogen loading, and ascent rates. When each diver uses their own device, it ensures the data is tailored to their specific dive conditions, thereby promoting safety and accuracy in monitoring their dive status.

Additionally, dive computers transmit real-time data related to the diver’s physiological state and dive history. If you were to share your computer, you risk mismanagement of important dive parameters and could inadvertently put both divers in danger. Thus, each diver should utilize their own dive computer to ensure they are equipped with the most relevant information for their individual dive.