The Mares Quad 2 dive computer in aqua blue is a professional-grade underwater instrument designed for precision diving performance. This advanced dive computer features the Bühlmann ZH-L16C decompression algorithm with customizable gradient factors, providing accurate decompression calculations tailored to individual diving profiles. Supporting multiple gas mixtures including air, Nitrox, and Trimix with capacity for up to five different gas combinations, it offers versatile diving options for various underwater environments. The device incorporates segmented Chip-On-Glass display technology ensuring optimal readability in all underwater conditions, complemented by an intuitive four-button interface for straightforward operation during dives. With a maximum operating depth of 150 meters, the Quad 2 includes comprehensive safety features such as ascent rate indicator, time to surface calculation, and automatic altitude adjustment every 20 seconds. The integrated decompression planner with additional surface interval function enables advanced dive planning capabilities. Data logging capacity stores up to 100 hours of dive profiles with 5-second sampling intervals for detailed performance tracking. Bluetooth connectivity allows seamless synchronization with smart devices for firmware updates and dive log sharing via the Mares application. Powered by a user-replaceable CR2450 battery supporting approximately 100 dives, this dive computer maintains practical functionality with underwater menu access for real-time adjustments. The device measures nitrogen washout timing and includes configurable audible alarm options while excluding uncontrolled ascent warnings. Constructed from durable materials suitable for marine environments, this dive computer represents a reliable tool for recreational and technical diving applications requiring precise depth, time, and decompression monitoring.