Easy to read and easy to use . A comfortable mix of graphics and icons make this computer extremely user friendly. Oversized digits and a split-screen display makes using the computer even easier.

• Water and manual activation

• Variable ascent rate indicator

• User-replaceable batteries

• Customize the information presented during a dive with a press of a button

• Water and manual activation

• Safety stop count-down timer

Dive Time Remaining
Dive Time Remaining provides a 'real' number in minutes, displaying your no-decompression dive time available.

Oversized Digits
When shopping for a new dive computer, compare the displays. When it comes to viewing critical information, which would you rather see at 100 feet?

Extended Range Gauge Mode
Divers using advanced breathing gas mixtures or otherwise conducting planned dives beyond the operational limits of the computer may utilize the XR-1 as an advanced digital depth gauge and bottom timer.

Water or Manual Activation
Is it a good idea to check your computer before entering the water? You bet. Could you forget to activate your computer? Sure. The ATMOS 1 features push-button or automatic activation, triggered by water contact. A benefit of push-button activation is easily verifying operation, but in case you forget, or simply choose not to activate your computer, it can be as simple as jumping in the water.

AERIS Dive Computer Algorithm
Decompression theory can be trusted only as far as it has been demonstrated by actual test dive data. In 1987 a unique series of experiments were conducted by Diving Science and Technology (DSAT). Commissioned by the Professional Association of Diving Instructors (PADI), these Doppler ultrasound monitored human experiments conducted by Dr. Michael Powell produced the most comprehensive data set that exists for recreational divers to this day. These data were used to validate the PADI Recreational Dive Planner and are the basis of the algorithm used in all AERIS Dive Computers.

Diving By The Colors
AERIS Dive Computers are designed with color-coded bar graphs; grey, yellow and red. These graphs monitor nitrogen accumulation and your personal ascent rate. Pixels build up in each of these color-coded areas to give you a quick, easy reference of these perameters. Proper monitoring of these graphs allows you to select the personal degree of conservatism you wish to build into each dive, putting you in control of your margin of safety.

Automatic Safety Stop Prompt
A visual alarm reminds you as you approach 15 feet. An automatic 3-minute timer counts down to zero. As in any other dive mode, you still have access to other pieces of information, and there is no penalty should you choose to disregard the safety stop.

Time of Day
The ATMOS 1 features time of day on the surface as well as underwater for quick reference.

User Friendly Mode Icons
All AERIS computers feature bar graphs and universal icons that help you to quickly understand the information displayed on the screen at a glance.

Graphic User Interface™
Using the recognizable logic of grey, yellow and red color-coding in conjunction with bar graphs, the diver has at-a-glance information. As easy to understand as a traffic light, the Graphic Diver Interface helps you to easily monitor No-Decompression status and Ascent Rate.

Automatic Altitude Compensation
All AERIS computers automatically compensate for altitude up to 14,000 feet, giving adjusted no-decompression times and depths. They even automatically recalibrate the depth display for freshwater instead of seawater.

Diver-Replaceable Batteries
All AERIS computers feature diver replaceable batteries. This can be a real trip-saver on board a live-aboard boat!

Battery Hot Swap™
An added benefit to diver replaceable batteries. The “hot-swap” feature allows you to change batteries between dives while maintaining all calculations.

24-Hour Fly Countdown and Calculated Desaturation Time
The ATMOS 1 features both a dual 12-hour countdown timer and calculated Desaturation Time, the theoretical time required to off-gas all residual nitrogen at sea level.

Variable Ascent Rate Indicator™
Some computers simply flash an icon, telling you that you’re ascending too quickly. The ATMOS 1’s Variable Ascent Rate Indicator bar graph acts as a speedometer, allowing you to very precisely control your ascent rate via the grey, yellow, and red bar graph.

Depth-Dependent Ascent Rate
The ATMOS 1 features a depth-dependant ascent rate, allowing increased rates at deeper depths and providing additional safety as you near the surface.

12 Dive On-Unit Log Book
The ATMOS 1 features on-unit data storage capacity for 12 dives. Time stamp makes locating and viewing a specific dive quick and easy.

USER SETTINGS AND OPTIONS

Extended Range Digital Gauge Mode On/Off
Activate Digital Gauge Mode for freediving or dives planned beyond the limits of the computer.

Units of Measurement
Choose between Metric and Imperial settings for depth and pressure.

12/24 Hour Time Format
Choose between 12 or 24 hour time format, independent of Units of Measurement.

Time of Day
The XR-1 displays time of day on the surface as well as underwater for quick reference.

Water Activation On/Off
Do you tend to keep your equipment in a wet dive bag longer than you should? Are you an Instructor or Divemaster in an environment where your gear is never dry? Would you like to disable the water activation feature? Now you can.

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