Alpha Ultra Dry Snorkel Octo holder Nitrox and Trimix multi-gas functionality

Nitrox and Trimix multi-gas functionality along with a three-axis tilt-compensated digital compass

The Commander Cold-Water Pro Scuba Package is an integrated life-support system engineered for divers operating in demanding environments

Clip this device onto the B

The Coral Reef Conservation course references information in the digital manual - AWARE - Our World

Navigating to various points

Alpha Ultra Dry Snorkel Octo holder Nitrox and Trimix multi-gas functionalityAlpha Ultra Dry The Cressi Alpha Ultra Dry snorkel allows divers to take every breath with confidence and focus on the reef below, not on worrying about water in their air way. A generous bore contoured tube provides ample airflow and a lower purge valve enables instant clearing if needed. The Alpha Ultra Dry has the latest dry top snorkel technology that auto close the tube when submerged for not allow water entry when you go underwater. Once you