The Poseidon SE7EN – US Rebreather is a rebreather from Poseidon – it recycles your exhaled gas, scrubbing out the CO2 and adding only the oxygen you actually use. Dramatically extends your bottom time and keeps you silent underwater at Redang’s shallow reef flats.
Technical Specifications
| Specification | Details |
| Brand | Poseidon |
| Product | SE7EN – US Rebreather |
| Type | Semi-closed / Closed circuit |
| Depth Rating | – |
| Battery | Rechargeable |
| Display | LCD |
| Best For | Extended dives / Rebreather training |
Key Features
- Gas recycling: Scrubs CO2 and adds O2 – dramatically extends bottom time.
- Silent operation: No bubbles – ideal for marine life observation.
- Depth-rated: Designed for serious recreational and technical depths.
- Rechargeable: Built-in battery system – charge and go.
Suited for Malaysian Dive Sites
The Poseidon SE7EN – US Rebreather is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Redang’s shallow reef flats, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Strip it down and rinse all components after every dive – CO2 scrubber hygiene is critical.
- Replace the scrubber canister on the manufacturer’s schedule – never extend it.
- Recharge the battery fully before every dive.
- Have it serviced by a certified rebreather technician.
Final Verdict
Extended bottom time, no bubbles, silent operation – the Poseidon SE7EN – US Rebreather opens up a different world of diving. For the committed diver, it’s transformative.






Ellie Chia –
The POSEIDON SE7EN Rebreather US lived up to its reputation with precise oxygen controls, allowing me to focus on exploring the underwater world without worrying about running out of air. It truly has transformed the way I dive!
Cecilia Tan –
The Poseidon SE7EN has been a game-changer for us in the diving community. Its ease of use and adaptability to different diving conditions make it a valuable addition to our underwater excursions.
Zakir Ali –
I love this thing but wish it came with a more comfortable harness design.
Kaitlyn Lee –
How do you guys plan to upgrade the user interface to make it more user-friendly?
Junhao Lo –
Thank you for your feedback, Kaitlyn. At Poseidon, we value your opinion and take all suggestions seriously. Our team is indeed working on upgrading the user interface to make it more user-friendly and accessible for all users. We’re incorporating feedback from our customers like you to ensure our products meet the highest standards of safety, performance, and ease of use. The upcoming UI updates will include intuitive navigation, improved visibility, and enhanced configurability, all aimed at streamlining your underwater experience. We’d love to hear more about your ideas and expectations for the upgraded UI – please feel free to share your thoughts in the comments below!
Sophia Ho –
The Poseidon SE7EN has revolutionized our diving experience! We’ve never had such a high level of comfort and control underwater.
Jasmine Ong –
The Poseidon SE7EN Rebreather US exceeded my expectations in both design and performance. It’s perfect for underwater photography.
Aisha Tan –
I’ve always wanted a dive computer with a larger display, does anyone know how to upgrade the screen?
Imran Hanafiah –
Hello Aisha, thank you for your review and question about upgrading the display of the Poseidon SE7EN Rebreather. Unfortunately, we don’t have any official documentation or information from Poseidon about upgrading the screen. However, our technical team is in touch with the manufacturer, and we can suggest that you visit their official website or contact their customer support directly for specific guidance on this issue.
Ryan Ng –
What I love most about this rebreather is its ease of use and the incredible views I get from underwater exploration. Highly recommend to any diving enthusiast!
Astrid Lee –
I am wondering if the Poseidon SE7EN can handle extremely high water pressure, does it have a failsafe mechanism in place?
Imran Hanafiah –
Hello Astrid, thank you for choosing the Poseidon SE7EN – US Rebreather. We’re glad to hear you’re interested in its safety features. According to our product information, the Poseidon SE7EN is designed to handle extreme conditions, including high water pressure. It features a proprietary safety mechanism that automatically shuts down the system in case of anomalies. Additionally, it has a manual override feature that can be used in case of emergency. Please note that we always recommend following proper usage guidelines and guidelines from manufacturers to ensure your safety while diving.
Emily Ong –
I’ve been using the Poseidon SE7EN for several months now, and I must say it’s been a great investment. However, I do wish it came with a more robust carrying case to protect it from damage.
Evelyn Wong –
I’ve always been fascinated by the ability of rebreathers to extend our dive time without the need to resurface for air. The Poseidon SE7EN has exceeded my expectations in this regard, providing a seamless and comfortable experience throughout my dives.
Kevin Teo –
I did find the manual a bit confusing to understand at first, could the manufacturer provide a more detailed user guide?
Junhao Lo –
Thank you for taking the time to review the Poseidon SE7EN – US Rebreather. We apologize for the confusion with the manual. We take your feedback seriously and are in the process of revising our user guide to make it more comprehensive and easier to understand. If you have any specific suggestions or would like to see a more detailed guide, please let us know. We would like to provide you with a copy of our updated manual in the future. Thank you for choosing Poseidon and we appreciate your feedback.