Scubapro Luna 2.0 Air Integrated Wrist Dive Computer (Transmitter not included)

A dive computer tracks the actual depth and time profile you have dived and the tissue loading that follows from it, which is personal to you. A rented computer has no record of your recent diving, and swapping models each trip means relearning the display and menus when you should be focused on the dive. Owning one you know well is a genuine safety and comfort improvement.

No. A computer only tracks the profile of the diver actually wearing it, and even buddies who stay together do not follow identical depth and time profiles. Every diver needs their own computer, and passing one between divers or between dives is unsafe.

Conservatism settings make the computer's calculations more cautious, shortening allowed bottom times and adding margin beyond the base algorithm. Divers commonly add conservatism for factors such as cold, hard work, fatigue, or repetitive multi-day diving. How and when to adjust it is covered by your training and your computer's manual, so set it before you get in the water and follow what your computer tells you during the dive.

Broadly there are two types: user-replaceable batteries, often a coin cell that you or a shop swap along with resealing an o-ring, and sealed rechargeable batteries that charge from a cable or dock. Neither is universally better, as replaceable cells are convenient on remote trips while rechargeables avoid ever opening the case. Follow the manual exactly for any battery change, because an improperly seated o-ring or case is the usual cause of a flooded computer.

Yes, both change the picture, and both are governed by your training agency's guidance and your computer's instructions rather than any casual rule of thumb. Many computers have an altitude setting that must be configured before diving at elevation, and most display a no-fly or surface-interval countdown after a dive. Follow your computer and your training, and ask a dive professional or a dive-medicine specialist if you are unsure.

Rinse it in fresh water after every dive day, paying attention to the buttons and around any sensor openings where salt crystals form, and let it dry fully before storing. Keep it out of prolonged direct sun and extreme heat, and avoid pressing buttons while sand is on the case. Inspect the strap or bungee often, because a failed strap loses far more computers than a failed computer does.

A wrist computer is worn like a watch and read by raising your arm, while a console computer sits at the end of a hose with your other gauges. Air integration means the computer also displays cylinder pressure, either through a hose or from a wireless transmitter on the first stage, and often estimates remaining gas time. All of them run a decompression algorithm, so the real difference is where you read the information and how much of it you get.

No. This listing is for the computer only, and it ships with the computer, a case, a silicone arm strap and the Read First manual. To use the wireless air integration you need the SCUBAPRO Smart + Pro transmitter, which is sold separately. Without a transmitter the Luna 2.0 AI still functions as a wrist computer in Scuba, Gauge and Freediving modes.

The Luna 2.0 AI has a maximum operating depth of 394 ft. It supports Nitrox mixes from 21% to 100% with up to 3 selectable gases, and offers both the predictive multi-gas ZH-L16 ADT MB algorithm with MB levels and the ZH-L16 GF gradient factor algorithm, so it covers recreational and Nitrox profiles well inside that depth range.

No, the Luna 2.0 AI does not include a built-in compass. Navigation needs to be handled with a separate wrist or retractor mounted compass. The computer does include a two button interface, a high-contrast black and white LCD with LED backlight, PDIS intermediate stop guidance and 50 hours of logbook capacity for dive review.

The Luna 2.0 AI uses a Bluetooth LE interface to connect to iOS, Android and PC/Mac, so dive logs transfer wirelessly with no cable or dock. Firmware is user updateable over the same connection, which means new features and fixes can be installed without sending the computer in for service.