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Poseidon Diving Systems Recalls Poseidon M28A Dive Computers Due to Injury Hazard

  • Front of Recalled Poseidon A28A Dive Computer
  • Serial Number beginning with “M28A-” and two wet-switches located on the back of recalled Poseidon A28 Dive Computer
Name of Product:
Poseidon M28A Dive Computers

The recalled Poseidon M28A Dive Computers can stop working due to intake of water causing a malfunctioning depth sensor resulting in a loss of dive data for the diver, posing an injury hazard.

Recall Date:
June 22, 2023

About 100

Consumer Contact

Poseidon Diving Systems at 800-858-6729, by email at or online at or and click on “PRODUCT RECALL – M28A” at the top of the page for more information.

Recall Details


This recall involves Poseidon M28A Dive Computers used for diving. They calculate continuously and present needed data for divers. The M28A works stand alone or in combination with the Poseidon SE7EN Rebreather. Only dive computers with a serial number starting with “M28A-” are included in this recall. The serial number and two metallic wet-switches are located on the back side of the recalled dive computers.


Consumers should immediately stop using the recalled dive computers and contact Poseidon Diving Systems at to return the product via free return shipping and receive a free repair.


The firm has received one report within the U.S. of water intake causing the depth sensor and other electronic components of the dive computer to malfunction. No injuries have been reported.

Sold At:
Diving stores nationwide and online and at from March 2017 through April 2019 for about $2,100.
Poseidon Diving Systems Inc., of Chicago, Illinois

Blue Ocean Ventures LLC, of Gardiner, Maine

Manufactured In:
Recall number:
Fast Track Recall

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About the U.S. CPSC

The U.S. Consumer Product Safety Commission (CPSC) is charged with protecting the public from unreasonable risk of injury or death associated with the use of thousands of types of consumer products. Deaths, injuries, and property damage from consumer product-related incidents cost the nation more than $1 trillion annually. CPSC's work to ensure the safety of consumer products has contributed to a decline in the rate of injuries associated with consumer products over the past 50 years.

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