Tag Archives: rebreather

Adventure Awaits - Evolving into a Technical Diver

February 26, 2019

Adventure Awaits - Evolving into a Technical Diver

I never thought I’d become a technical diver let alone a technical diving instructor. I never thought I’d be ice diving in Antarctica, cave diving in Mexico or exploring 300 feet deep wrecks in []

Déjà vu?

December 29, 2018

Déjà vu?

What is a NERD? What is AI?

I recently upgraded my Dive Rite O2ptima rebreather with the new back mounted counter lungs and the built-in bail out valve (BOV) mouthpiece, (which allows me to breathe []

Technical Divers Searching for Superbug Killing Molecules

January 25, 2018

Technical Divers Searching for Superbug Killing Molecules

Antimicrobial Peptides from Sea Urchins in the Twilight Zone of Bahía Banderas México

The overuse of antibiotics in the last several decades has created resistance in many of the microorganisms that cause some of the []

Control of O2 Levels in a Diver's Rebreather

April 21, 2017

Control of O2 Levels in a Diver's Rebreather

There are several methods in use for controlling the O2 level. The difficulty is to a find solution that is relatively simple and that maintains acceptable levels of O2 even when depths and diver workloads change.

What is <span style='text-transform: capitalize;'>DiveCAN</span>® and why should  I care?

March 22, 2016

What is DiveCAN® and why should I care?

Digital communications are clearly replacing analog communications in computer based devices.  As more digital communication becomes integrated into rebreathers, Shearwater went in search of the best digital solution.

We looked at basic serial and at []

Why do you calibrate a CCR with pure Oxygen?

September 15, 2015

Why do you calibrate a CCR with pure Oxygen?

We frequently get asked the question as to why we use O2 as a calibration source for oxygen sensors in closed circuit rebreathers (CCR).  A CCR diver often has multiple gasses available, any of which []

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Upcoming Dive Shows

Shearwater Research will be at the following dive shows:

SFO SCUBA SHOW 2019

Read More / Apr 26-27 Booth No. 45

DRT TAIWAN 2019

Read More / May 31 - Jun 2 A71

DEMA SHOW 2019 (Orlando)

Read More / Nov 13-16 Booth No. 2537

DRT HONG KONG 2019

Read More / Dec 13-15 Booth No. 232