Mares Sirius Diving Computer 

The Mares Sirius is a watch-style dive computer that perfectly blends sophisticated aesthetics with top-tier technical performance.

Whether you are a recreational diver looking for simplicity or an Extended Range diver managing complex decompression stops, the Sirius delivers reliability and style.

Its refined look makes it a perfect daily accessory even when you are out of the water.

Key Benefits for Divers

• Exceptional Visibility: High-resolution MIP color display provides crystal-clear data reading in all underwater environments.
• Full Trimix & Nitrox Capability: Manage up to 5 different gases (Nitrox 21-99% and Trimix) for advanced technical diving profiles.
• Enhanced Safety: Powered by the ZH-L16C algorithm with Gradient Factors and tank pressure integration for up to 5 transmitters.
• Universal Fit: The interchangeable strap system includes an extra-long version to fit over any drysuit or thick wetsuit.
• Sustainable Power: Featuring a wireless charging cradle, removing the need for battery changes and ensuring maximum casing integrity.

Technical Specifications

Maintenance and Product Care

Ensure your Mares Sirius lasts for years with these simple steps:

• Rinse thoroughly in fresh, lukewarm water after every saltwater dive.
• Avoid leaving the device in direct sunlight or high-heat environments (like a car dashboard).
• Check the strap pins and charging base surface for debris regularly.
• Store in the provided protective case to prevent screen scratches.

FAQ – Frequently Asked Questions

Does it come with the transmitter?

The computer is "Air Integrated" ready, but the LED Tank Module transmitter is sold separately as an optional accessory.

Is the battery user-replaceable?

No, the Sirius features a high-performance internal rechargeable battery, which is more cost-effective and environmentally friendly.

Mares LED Tank Module 2.0 

The Mares LED Tank Module 2.0 is a cutting-edge pressure transmitter designed to elevate your diving experience.

By wirelessly broadcasting tank pressure data directly to your dive computer, it offers seamless air integration, allowing you to focus on your dive.

It is an essential tool for underwater photographers, videographers, and tech divers using stage tanks.

Key Benefits and Features

• Instant Visual Feedback: The multi-color LED provides immediate tank pressure status via flashes, visible to both you and your buddy, even on the surface.
• Permanent Pairing: Once paired, the devices remain connected, simplifying your pre-dive routine and ensuring a reliable connection every time.
• Pro-Level Reliability: EN250:2014 certified and rated up to 300 bar, providing maximum safety during deep or technical dives.
• Long Battery Life: Powered by a 14250 battery, it delivers over 150 dives of performance on a single cell.

Technical Specifications

Setup Guide & Pairing

1. Install the Mares LED Tank Module 2.0 into a High Pressure (HP) port of your first-stage regulator.
2. Turn on your Mares dive computer (Sirius or Quad Ci) and navigate to "Tank Pairing" settings.
3. Slowly open the tank valve – the pressure increase will wake up the transmitter.
4. Confirm the pairing on your dive computer. Thanks to permanent pairing, the devices will reconnect automatically for all future dives.

Maintenance and Care

To ensure your transmitter performs reliably for years, follow these maintenance tips:

• Rinse with fresh water after every saltwater dive while still attached to the regulator.
• Protect the transmitter from mechanical impacts during transport.
• Periodically inspect the HP thread O-ring and replace it if worn or cracked.
• Remove the battery if the device will not be used for more than 6 months.

FAQ – Frequently Asked Questions

Is this transmitter compatible with the Mares Genius computer?

No. The Tank Module 2.0 is specifically designed for the Sirius and Quad Ci platforms. For older models, please verify compatibility with version 1.0.

Is the LED flash visible in bright sunlight?

Yes, the high-intensity LED is designed to be visible during surface gear checks even in sunny conditions.

Can I change the battery myself?

While the 14250 battery is replaceable, we recommend having it serviced at an authorized center to guarantee the O-ring seal and waterproof integrity.