New divers, this one's for you: entry-level pricing, essential functionality, and simple, one-button navigation. Select from four operating modes and manage two gases. The i100 also retains all your settings and calculations during battery changes. Stay safe with audible alarms and a high-visibility LED warning light.

• Four Operating Modes: Dive how you like with Air, Nitrox, Gauge dive modes, plus Free Dive (tracks calculations to allow switching between dive modes and free dive). 
• User-Changeable Battery: uses globally available standard batteries found at supermarkets and drugstores so you can easily replace as needed.
• Memory: Maintains settings and calculations during battery changes.
• Intuitive, one-button Navigation: Single-button access to last dive data (maximum depth and bottom time).
• Increased Safety:
• Audible alarms and additional high-visibility LED warning light.
• Updatable software: User-updatable software gives you long-term access to the latest features and upgrades (optional download cable purchase required).
• Water Activation:Water activation feature gives you a worry-free start to your dive.
• History Mode:History Mode lets you see your total dives, maximum depth, total dive hours, and lowest temperature. Records up to 24 dives.
• Nitrox Mix Capability: Up to 100% O2. Mix up to 2 Nitrox gases.
• Deep Stop:Optional deep stop with countdown timer.
• Go Anywhere: Salt or freshwater dive selection.
• Altitude adjustment: Automatic altitude adjustment ensures an accurate profile