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Mares Instrument LED Tank Module 2.0 Black/Black

Mares  |  SKU: 414322BKBK
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$308.95
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Product Information

The Mares LED Tank Module 2.0 (product code 414322, Black/Black) is a wireless tank pressure transmitter that sends tank gas information to a compatible Mares dive computer and shows the gas remaining through a series of colored LED lights on the module itself, so you can read your tank at a glance without a traditional analog SPG. Mares publishes compatibility with the Sirius (414145) and Quad Ci (414148) dive computers only.

Who it is for

It is for Mares Sirius or Quad Ci owners who want to move to a hoseless setup and keep pressure data on the wrist instead of on a hose mounted gauge. The colored LED on the transmitter also makes it easy to check tank status on the surface, during kitting up and between dives, which suits dive guides, instructors and anyone cycling through several cylinders in a day.

Key details

  • Function: wireless monitoring of scuba tank air pressure, replacing a traditional analog SPG.
  • Color LED sighting: a series of colored lights identifies the quantity of gas remaining for a quick check on the surface.
  • Pairing: permanent. Once associated with a compatible dive computer, the two remain paired.
  • Certification: EN 250:2014 to 300 bar.
  • Battery: type 14250, user replaceable, with a life of 150+ dives.
  • Color: Black.

Compatibility and sizing

The LED Tank Module 2.0 works with the Mares Sirius (414145) and Mares Quad Ci (414148) dive computers only. It is not published as compatible with other Mares computers.

DiveCatalog.com is an authorized Mares dealer and a real dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you want help confirming computer compatibility or first stage port fitment before you order.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

Which Mares dive computers work with the LED Tank Module 2.0?

Mares publishes compatibility with the Sirius (414145) and the Quad Ci (414148) dive computers only. Other Mares computers are not listed as compatible with this transmitter. Once the module is associated with one of those computers, the pairing is permanent, so the two units stay linked for future dives. If you are unsure which computer model you own, contact us before ordering.

What do the colored LED lights on the module mean?

The LED Tank Module 2.0 emits a series of colored lights that identify the quantity of gas remaining in the cylinder. This gives you tank information at a glance directly on the transmitter, which is useful for a quick check on the surface while gearing up or during a surface interval, in addition to the pressure shown on the paired Mares dive computer.

Can I change the battery myself?

Yes. It uses a type 14250 user-replaceable battery with a life of 150+ dives. Follow the battery replacement procedure in the Mares LED Tank Module manual. Call us at 888-701-4017 if you would rather have the shop handle it.

Does this transmitter replace my SPG?

It is designed as a wireless device for monitoring air pressure in the scuba tank without a traditional analog SPG. It sends tank pressure data wirelessly to a paired Mares Sirius (414145) or Quad Ci (414148) dive computer. It is EN 250:2014 certified to 300 bar. Many divers still carry a backup gauge as a personal preference.

Review summary

4.6 18 ratings across the web

Reviewers report it pairs easily with their Mares Sirius computer and works reliably dive after dive, with several calling installation straightforward and noting you should avoid over-tightening. Owners using it with the Sirius were happy with performance. A couple of reviewers ran into battery issues, one needing a fresh battery out of the box and another a service visit after low internal charge. Good fit for Sirius owners who want tank pressure on the wrist and are comfortable with basic battery upkeep.

What reviewers like

Works reliably across repeated dives
Pairs easily with the Mares Sirius computer
Works well with the Mares Sirius
Simple install, just do not over-tighten

Good to know

Check battery first if it will not pair
One reviewer needed service after a low battery reading