User`s guide
Puck Air Dive computer
18
to inspect the finished product under art. 11 B 
D.e. 89/686/CEE.
CHARACTERISTICS
Maximum operating pressure: 360 bar (5150 psi).
Accuracy: The guaranteed accuracy of the 
pressure measurement is:
•  at 50 bar ± 5 bar  • at 750 psi ± 72 psi
•  at 100 bar ± 10 bar  • at 1450 psi ± 145 psi
•  at 200 bar ± 10 bar  • at 2900 psi ± 145 psi
•  at 300 bar ± 15 bar  • at 4350 psi ± 217 psi
Connecting port airflow: <100 liters/min. at a 
pressure of 100 bar.
MEASUREMENT RESOLUTION
Metric: 1 bar
Imperial : 10 psi.
MEASUREMENT OF HIGH PRESSURE
•  every 5 seconds.
DEPTH MEASUREMENT
•  Maximum displayed depth: 150 m (492 ft)
•  Measurement resolution:
-  10 cm (3.95 in) in the 0-100 m (0-328 ft) 
range
-  1 m (3.28 ft) in the 100-150 m (328-492 ft) 
range
•  Temperature compensation of the 
measurement between -10 and +50 °C 
(14/122 °F)
•  Measurement accuracy from 0 to 80 m 
(0-262 ft): ±1% of full scale
•  Depth display: meters (m) / feet (ft)
•  Manual fresh/seawater selection
•  Difference between fresh/seawater: 2.5%
TEMPERATURE MEASUREMENT
•  Measurement range: -10/+50 °C (14/122 °F)
•  Measurement resolution: 1°C (1°F)
•  Measurement accuracy: ±2 °C (±4 °F)
•  Temperature display: Celsius (°C)/ 
Fahrenheit (°F)
•  Operating temperature: from -10 to +50 °C 
(14/122 °F)
•  Storage temperature: from -20 to +70 °C  
(-4/+158 °F)
BATTERY
•  Lithium 3V CR 2450 battery
•  Life: over 170 dives*
* NOTE
Data calculations were performed with the 
following parameters:
•  Average length of each dive is 45 min
•  12 months of OFF Mode
•  Battery life is affected by the operating 
temperature
•  Battery life decreases at lower 
temperatures
•  The life of the battery will vary depending 
on use
ALGORITHM
•  RGBM Mares-Wienke, the result of 
collaboration between Dr. Bruce R. Wienke 
and the Mares Research and Development 
Center.
•  10 tissue compartments 
•  Reduction of permissible gradient 
(M factors) in case of repetitive dives, 
deeper-than-previous dives or dives on 
multiple consecutive days.
•  Deep decompression-stops
•  Safety stop
•  Ascent rate: 10 m/min
•  Altitude programs:
-  P0 from 0 to 700 meters ASL (0-2296 ft)
-  P1 from 700 to 1500 meters ASL 
(22 96-4921 ft)
-  P2 from 1500 to 2400 meters ASL 
(4921-7874 ft)
-  P3 from 2400 to 3700 meters ASL 
(7874-12139 ft)
•  Personal correction factor for added safety 
MECHANICAL CHARACTERISTICS
•  Plastic lens
•  Plastic lens cover
•  1 button
FUNCTIONAL CHARACTERISTICS
DIVE operating mode
•  Air
•  Ean
•  Bottom Time
SCROLLING OF NODECOMPRESSION LIMITS
•  From 12 to 48 m (39 -157ft)
Logbook
•  History
•  All dives are stored with profile points at 
20 second intervals, a maximum of 40 hours. 
BACKLIGHTING
•  Temporary
AUDIBLE ALARMS
•  Omitted decompression-stop
•  Excessive ascent rate
•  No-decompression limit reached
•  Deepstop
•  Maximum depth allowed by the max PPO
2
setting
PC INTERFACE
•  USB (optional)
WARRANTY
Mares products are guaranteed for a period of 
two years subject to the following limitations 
and conditions:
•  The warranty is non transferable and applies 
strictly to the original purchaser.
•  Mares products are warranted free from 
defects in materials and workmanship: 
upon serious technical inspection, any 
components that are found to be defective 
will be replaced free of charge.
•  Mares S.p.A. declines all responsibility 
for accidents of any kind that result from 
tampering or incorrect use of its products. 
VALIDATION OF THE WARRANTY
To validate the warranty, the first purchaser 
must mail this certificate complete with the 
vendor’s stamp to Mares S.p.A. within 10 days 
of the date of purchase. Any products returned 
for overhaul or repairs under warranty, or 
for any other reason, must be forwarded 
exclusively via the vendor and accompanied 
with a proof of purchase slip. Products travel 
at the risk of the sender.
•
WARRANTY EXCLUSIONS
•  Damage caused by water seepage resulting 
from improper use (e.g., dirty seal, battery 
compartment closed incorrectly, etc.)
•  Rupture or scratching of the case, glass or 
strap as a result of violent impact or blows
•  Damage resulting from excessive exposure 
to elevated or low temperatures.
•  Damage caused by improper use of 
compressed air with pressure higher than 
the indicated maximun operating pressure, 
360 bar (5150 psi).
HOW TO FIND THE PRODUCT CODE
To view the product code, enter the System 
menu.
The product serial number is indicated here. 
You should note this number on the warranty 
certificate inside the packaging. The serial 
number can also be found on the Puck Air 
packaging.
DISPOSAL OF THE DEVICE
Dispose of this device as electronic waste.
Do not throw it away with regular rubbish.
If you prefer, you can return the device to your 
local Mares dealer.
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