Suunto Eon Core Wrist Dive Computer w/ Transmitter And USB

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.

The Suunto Tank POD uses 7/16"-20UNF threading with a 19 mm hex base and installs on a first-stage high-pressure port. It measures 80 mm long with a 40 mm maximum diameter and is rated to 300 bar / 4351 psi and 150 m / 492 ft. Call 888-701-4017 if you want your first stage confirmed before ordering.

The EON Core uses a rechargeable lithium-ion battery that delivers 10 to 20 hours of dive time on a full charge, recharged with the USB cable included in the box. Charge it at 0 °C to +35 °C / +32 °F to +95 °F. The Tank POD uses a separate 3.6 V 1/2 AA lithium-thionyl chloride cell that is replaced only at an authorized Suunto Service Center.

Yes. The EON Core pairs with up to 20 Suunto Tank PODs and can display up to 10 pressures. Each additional cylinder needs its own Tank POD transmitter. Pressure is received over a single-channel 123 kHz underwater radio link with a range of about 1.5 m / 4.9 ft.

Yes. The EON Core offers Gauge, Air, Nitrox, Trimix and CCR (fixed point) dive modes, and lets you choose between the Suunto Fused RGBM 2 algorithm with 15 tissue compartments and Buhlmann 16 GF with 16 compartments. Depth accuracy is certified to 80 m / 262 ft under EN 13319 and ISO 6425, with a display range to 300 m / 984 ft.