Dive Computer
Definition
A dive computer is a digital device that tracks a diver’s depth, time, and nitrogen absorption in real time to calculate a safe ascent profile.
More on Dive Computer
Dive computers replace dive tables by offering real-time decompression tracking based on actual dive profiles. They calculate no-decompression limits, track ascent rates, show safety or deco stops, and alert divers to unsafe behavior. Computers use decompression models like Bühlmann ZHL or RGBM. Features vary from basic wrist units to advanced air-integrated models with Bluetooth sync, compass, and multiple gas support. All divers benefit from owning and understanding their computer.
Frequently Asked Questions
It tracks depth, time, ascent rate, no-decompression limit (NDL), gas mix, and can calculate required stops during multi-level dives.
Yes, because it adapts to your actual profile in real time, offering more flexibility, safety, and accuracy than static tables.
With proper care, dive computers can last 5–10+ years. Battery life depends on model—some are rechargeable, others require battery changes.
No. Dive computers are personal safety devices that track your individual dive history and nitrogen loading. Sharing is unsafe.
Air-integrated computers track tank pressure and estimate remaining air time. It's a useful feature but adds cost and complexity.