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Description
Description
The Mares QUAD 2 Dive Computer is a dependable choice for scuba and diving gear, delivering precise decompression calculations and versatile gas support for a wide range of underwater missions. It handles Air, Nitrox (21–99%), and Trimix (Hypoxic, Normoxic), with gas switching to adapt to varying dive profiles and conditions.
Its Bühlmann ZH-L16C algorithm with customizable Gradient Factors provides tailored decompression planning for both recreational and technical diving. The device features a crystal-clear segmented display, a glove-friendly four-button interface, and a decompression planner with a Surface Interval function. A logbook stores up to 100 hours of dive profiles at a 5-second sampling rate, while Bluetooth connectivity enables syncing with the Mares app for firmware updates and dive-log sharing. Automatic altitude adaptation keeps readings accurate during altitude diving, and the user-replaceable CR2450 battery offers up to 100 hours of dive time for reliable performance across trips.
Features
Features
- Bühlmann ZH-L16C Algorithm: Provides precision with customizable Gradient Factors for tailored decompression calculations, ideal for scuba and technical diving.
- Multi-Gas Compatibility: Supports Air, Nitrox, and Trimix, allowing up to 5 gas mixes for maximum versatility.
- Crystal-Clear Display: Advanced segmented Chip-On-Glass technology ensures exceptional readability in any underwater condition.
- Intuitive Four-Button Interface: Designed for quick commands and easy navigation, even with gloves on.
- Decompression Planner: Includes a Surface Interval function for accurate and advanced dive planning.
- Logbook Capacity: Stores up to 100 hours of dive profiles with a 5-second sampling rate, perfect for tracking dive data.
- Underwater Settings Menu: Adjust dive settings mid-dive for a seamless and safe underwater experience.
- Time to Surface (TTS): Plan safe dive times effortlessly during any point of your dive.
- Altitude Adaptation: Automatically adjusts ambient pressure every 20 seconds for altitude diving.
- Integrated Bluetooth: Sync with the Mares app on your smartphone to update firmware and share dive logs.
- Battery and Power: CR2450 battery, user-replaceable, with up to 100 hours of dive time.
Specifications
Specifications
| Algorithm | Bühlmann ZH-L16C with customizable Gradient Factors |
|---|---|
| Gas Compatibility | Air, Nitrox (21%–99%), and Trimix (Hypoxic, Normoxic) |
| Max Displayed Depth | 150 m / 492 ft |
| Display | Segmented Chip-On-Glass Display |
| Logbook Capacity | 100 hours of dive profiles at a 5-second sampling rate |
| Battery Type | CR2450 (user-replaceable) |
| Battery Duration | 100 hours of dive time |
| Altitude Adjustment | Automatic adjustment every 20 seconds |
| Gas Switching | Supported |
| Ascent Rate Indicator | True |
| Upgradeable Software | Yes |
| Integrated Bluetooth | Yes |
| Fresh and Seawater Settings | False |
| Exclusion of "Uncontrolled Ascent" | False |
Payment & Security
Payment methods
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WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Why do I need my own dive computer?
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.
Can two divers share one dive computer?
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.
What does conservatism mean on a dive computer?
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.
What kind of battery does a dive computer use?
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.
Do I need to do anything special for altitude diving or flying after diving?
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.
How do I care for a dive computer?
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.
What is the difference between wrist, console, and air-integrated dive computers?
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.
