The Sirius L is Mares' lightweight dive computer that combines performance and simplicity. With a bright LCD screen, multiple dive modes, Bluetooth connectivity, and the trusted Bühlmann algorithm, it offers precision and ease of use in a compact design. Features like Safety Stop+, two-button navigation, and a user-replaceable battery make it ideal for all diving levels.

Lighter design. Limitless performance.

The Sirius L is the streamlined evolution of Mares' high-performance dive computer. Designed for divers who demand power and precision without the added bulk, the Sirius L combines essential features, intuitive usability, and lightweight comfort.

Bright segment LCD screen:

Chip-on-Glass LCD technology provides crisp, easy-to-read data – designed for optimal readability, even in challenging underwater conditions.

Multiple dive modes:

Air, Nitrox, Multigas Nitrox (up to 3 gases), Freedive, and Bottom Timer, including features such as the standard safety stop and Safety Stop+.

Safety Stop+ function:

In addition to the standard safety stop, Safety Stop+ offers an optional, automatic extension of the shallow stop, based on your dive profile and ascent rate. While not mandatory, it does provide an extra layer of safety—ideal for repetitive or deeper dives.

Precise decompression:

Powered by the reliable Bühlmann ZH-L16C algorithm, with adjustable gradient factors and various personalization levels tailored to your training and preferences.

User-friendly interface:

Simple operation with just two buttons, both above and below the surface.

Bluetooth connectivity:

Sync directly with the Mares App or SSI App to view your dive logs, track progress, and effortlessly update firmware.

Long battery life:

Powered by a user-replaceable CR2450 battery, good for up to 100 dives per cycle.

Daily use:

Includes timekeeping functions such as date & time, alarm, and countdown timer—a watch for both underwater and everyday use.

Key features at a glance:

• Dive modes: Air, Nitrox, Multigas Nitrox, Freedive, Bottom Timer
• Bühlmann ZH-L16C algorithm with adjustable gradient factors
• Multigas functionality: up to 3 gases
• Safety Stop and Safety Stop+ options
• Bottom Timer mode with resettable average depth and stopwatch
• Decompression planner with adjustable surface interval
• Logbook capacity for up to 100 dives with graphs (via Mares App)
• User-replaceable battery (CR2450) – approximately 100 dives
• Integrated Bluetooth for app synchronization and firmware updates
• Two-button navigation for intuitive use
• Easy-to-change strap – compatible with colored straps or bungee mount (sold separately)