There are two gas mixes allowed with the Suunto Cobra 3, and the oxygen rates can be from 21%-99%. Nitrox works well with the Cobra 3 and divers with their nitrox certification.
AIR INTEGRATION
The Suunto Cobra 3 has a slightly different air integration than other dive computers. It integrates through a high-pressure hose connection onto your regulator.
COMPASS AND TEMPERATURE
The water temperature is displayed in either centigrade or Fahrenheit on the Suunto Cobra 3. There is also a temperature compensated pressure sensor that is calibrated complying with EN 13319.
It also offers an integrated 3D tiltable compass.
DISPLAY
The display is divided into three lines. It’s easy to read. The backlight has several timeout options. This is a great feature on the Suunto Cobra 3 because it allows you to preserve the life of your dive battery. The timeout of the backlight ranges from 2 seconds through 60 seconds, giving you plenty of options to suit your needs.
BATTERY LIFE
The Suunto Cobra 3 has a dive battery life estimate of 1.5 years; time mode of 3 years. Suunto does not recommend that users replace the battery themselves because of the risk of water leaking into the battery compartment. The battery is user-replaceable. Although the manufacturer recommends you take it to a service station. You find instructions on how to do this in the owner’s manual.
ALARMS
The alarm system consists of both audio and visual alarms. Many low-level alarms are only audio and may consist of short beeps, or interval beeps to alert you to an issue that needs attention. More serious alerts combine audible beeps with activation of the backlight. For life-threatening alerts, you will hear continuous beeps, and the backlight will be activated. These life-threatening alerts can be when the maximum ascent rate of 10 m per second is violated or if the decompression ceiling depth is exceeded.
When the maximum depth or dive time gets exceeded, both visual and audial alarms are triggered. Nitrox has its own set of alarms to alert you of your maximum safe partial pressure of oxygen levels.
TECHNICAL CAPABILITIES
The algorithms used on the Suunto Cobra 3 is based on a reduced gradient bubble model. The RGBM predicts gas build-up in the blood and tissues of divers.
DIVE LOG AND CONNECTIVITY
The Cobra 3 connects to your PC through a USB dongle with Suunto’s mobile application that functions as a dive log. It functions with the DM5 software allowing you to download your dive data to the mobile app anywhere you are. Suunto DM5 software
PRODUCT HIGHLIGHTS
- Air, nitrox, and gauge modes
- 3D compass
- Suunto RGBM
- Easy-to-read matrix display
- 2 year warranty
What’s in the Box:
Suunto Cobra3, high pressure hose included; dive manuals on DVD, Cobra3 Quick Guide and dive legal leaflet with warranty information
Cobra 3 Dive Computer Manual - download
