eBay Auction Item

Mares M-1 Computer Wrist Model

This unit is used and in excellent condition. Computer has less than 20 dives on it and works perfectly. It is currently on auction at eBay bidding starts at $190.00.

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A sleek and distinctive look, controlled by just two mechanical buttons (Mares patent). Powered by two 1.5 Volt AAA batteries, easily obtainable anywhere in the world.

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Traditional dive functions
Current depth / maximum depth achieved (on request)
Dive time
Remaining no-stop time at the current depth (no dec)
Decompression stop times
Total time to surface
Water temperature (on request)
Speed of ascent (expressed as a percentage of the maximum allowable ascent rate)
Value for CNS O2 LIMIT % (in the case of Nitrox dives)
Dive time in minutes and seconds (in bottom time mode)

Surface functions
Surface time
Logbook facility for storing 50 dives in memory
Profiles of the last 50 dives, at 20 seconds intervals (max 38 hours)
Desaturation time display (desat)
Time-to-fly (no fly)
Calendar clock
Air temperature
Self-check
Scrolling of no-stop times for planning repetitive dives
Dive simulator

Alarms No decompression limit reached
Excessively rapid ascent
Omitted decompression stop
Low battery
Max permitted depth for the programmed PPO2 value (for Nitrox dives)

Special functions
Setting of Air/Nitrox/Bottom time programs
Setting of percentage O2 from 21% to 50%, in increments of 1%
Setting of PPO2 max from 1.2 to 1.6 bar
Infrared PC interface with possibility of printing the logbook
and the profile of each dive (optional)
Changing the units of measurement (m/feet - °C/°F)
4 manually selectable altitude programs
History of the total number of dives, the deepest dive logged, the lowest temperature measured underwater, and the total hours of diving
Display backlight, timed or permanently illuminated (using push-button controls)
No loss of memory during battery change
Percent ascent rate indicator
Function for clearing residual nitrogen memory
Function for disabling audible alarms
Fresh water / seawater setting (default fresh)
Function for disabling "uncontrolled ascent" feature
Function for selecting the program
Recording of dive errors in memory

Technical characteristics
Algorithm: with 11 tissues, of the exponential-deterministic type, with M values
(low bubble) derived from the studies of Rogers and Powell (modified Haldanean)
Display protected by scratch-resistant mineral glass
Two push-buttons for selecting functions (Mares patent)
Powered by two 1.5 volt AAA batteries
Quartz calendar clock
Maximum operating depth: 150 m /495 feet
Maximum depth of first decompression stop: 24 m / 80 feet
Operating temperature: from -10 to +50°C (14/122 °F)
Storage temperature: from -20 to +70°C (-4/+158 °F)