This Suunto D9 Dive Computer includes the transmitter along with all the other great technical functionalities.D9:

• Diameter: 50.0 mm [1.97 in].
• Thickness: 17.6 mm [0.67 in].
• Weight: 110g [3.88 oz].

Transmitter:

• Max. diameter: 40 mm [1.57 in].
• Length: 80mm [3.15 in].
• Weight: 118g [4.16 oz].
• Rated working pressure: 300 bar [4000 psi], maximum allowed pressure 360bar [5000 psi].
• Display resolution: 1 bar [1 psi].

Depth Gauge:

• Temperature compensated pressure sensor.
• Salt water calibrated, in fresh water the readings are about 3% smaller (calibratedcomplying with EN 13319).
• Maximum depth of operation: 100 m [328 ft] (complying with EN 13319).
• Accuracy: ± 1% of full scale or better from 0 to 80 m [262 ft] at 20°C [68°F](complying with EN 13319).
• Depth display range: 0 … 200 m [656 ft].
• Resolution: 0.1 m from 0 to 100 m [1 ft from 0 to 328 ft].

Temperature display:

• Resolution: 1°C [1.5°F].
• Display range: -20 ... 50°C [-9 ... 122°F].
• Accuracy: ± 2°C [± 3.6°F] within 20 minutes of temperature change.Calendar Clock:
• Accuracy: ± 25 s/month (at 20°C [68°F]).
• 12/24 h display.

Other displays:

• Dive time: 0 to 999 min, counting starts and stops at 1.2 m [4 ft] depth.
• Surface time: 0 to 99 h 59 min.
• Dive counter: 0 to 99 for repetitive dives.
• No-decompression time: 0 to 99 min (- after 99).
• Ascent time: 0 to 99 min ( - after 99).
• Ceiling depths: 3.0 to 100 m [10 to 328 ft].
• Air time: 0 to 99 min (- after 99).

Displays only in Nitrox mode:

• Oxygen%: 21 - 99.
• Oxygen partial pressure display: 0.5-1.6 bar depending on the limit setting.
• Oxygen Limit Fraction: 1 -200% with 1% resolution

Logbook/Dive Profi le Memory:

• Recording interval: 20 seconds adjustable (1-10-20-30-60s), records the maximumdepth, minimum temperature and minimum tank pressure of each interval.
• Memory capacity: approximately 36 hours of diving with 20 seconds recordinginterval.
• Depth accuracy: 0.3 m [1 ft].

Operating Conditions

• Normal altitude range: 0 to 3000 m [10000 ft] above sea level.
• Operating temperature: 0°C to 40°C [32°F to 104°F].
• Storage temperature: -20°C to 50°C [-4°F to 122°F].It is recommended that the instrument be stored in a dry place at room temperature.NOTE! Do not leave the dive computer in direct sunlight!Tissue Calculation Model
• Suunto Deepstop RGBM algorithm (developed by SUUNTO and Bruce R.Wienke, BS, MS and PhD).
• 9 tissue compartments.
• Tissue compartment halftimes: 2.5, 5, 10, 20, 40, 80, 120, 240 and 480 minutes(on gassing). The off gassing halftimes are slowed down.
• Reduced gradient (variable) “M” values based on diving habit and dive violations.The “M” values are tracked up to 100 hours after a dive.
• The EAN and oxygen exposure calculations are based on recommendationsby R.W. Hamilton, PhD and currently accepted exposure time limit tables andprinciples.

BatteryD9:

• One 3 V lithium battery: CR 2450
• Battery storage time (shelf life): Up to three years.
• Replacement: Every two years or more often depending on dive activity.
• Life expectancy at 20°C [68°F]:
• 0 dives/y -> 2 years
• 100 dives/y -> 1,5 years
• 300 dives/y -> 1 year

The following conditions have an affect on the expected battery lifetime:

• The length of the dives.
• The condition in which the unit is operated and stored (e.g. temperature/coldconditions). Below 10°C [50°F] the expected battery lifetime is about 50-75%of that at 20°C [68°F].
• The use of the backlight and audible alarms.
• Use of the compass
• The quality of the battery (some lithium batteries may exhaust unexpectedlywhich cannot be tested in advance).
• The time the dive computer has been stored until it gets to the customer. Thebattery is installed into the unit at the factory.

Transmitter:

• One 3V lithium battery: 1/2AA (K5546) and O-ring 2,00 mm x 25,00 mm(K5538).
• Battery storage time (shelf life): Up to three years.
• Replacement: Every two years or more often depending on dive activity.
• Life expectancy at 20°C [68°F]:
• 0 dives/y -> 3 years
• 100 dives/y -> 2 years
• 400 dives/y -> 1 year

The following conditions have an affect on the expected battery lifetime:

• The length of the dives.
• The condition in which the unit is operated and stored (e.g. temperature/coldconditions). Below 10°C [50°F] the expected battery lifetime is about 50-75%of that at 20°C [68°F].
• The use of the backlight and audible alarms.
• The quality of the battery (some lithium batteries may exhaust unexpectedly,which cannot be tested in advance).
• The time the dive computer has been stored until it gets to the customer. Thebattery is installed into the unit at the factory.