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Second edition of John Lamb’s ‘Oxygen Measurement for Divers’ published




There are a number of seminal texts that ought to be on every serious divers bookcase.

  • Deco for Divers
  • Diving and Subaquatic Medicine
  • Diving Physiology in Plain English
  • Underwater Photography Masterclass

These easy-to-read books provide in-depth accurate information – they are ‘gold standard’ diving reference books.

A critical addition to this list has just been published. John Lamb’s second edition of ‘Oxygen Measurement for Divers’.

Lamb has augmented his original book, with a big emphasis on closed circuit rebreathers. When the first edition was published in 1999, CCR recreational diving was very new; hence the rebreather section was only four pages long. This updated edition is stuffed full of nuggets of significant information that every rebreather diver needs on oxygen sensors in rebreathers. It promises to become the “go to book” for all rebreather divers.

Sensors, like sharks, have suffered from some bad PR. Lamb succinctly covers key topics, explaining in plain English the reasons for sensor failure:

  • the effects of temperature, humidity and pressure
  • sensor accuracy and stability
  • testing sensors
  • Do’s and Don’t s
  • how to determine the end of a life of a sensor
  • advice for looking after your sensors

‘Oxygen Measurement for Divers’ is remarkably readable. It has been designed for divers to pick it up and dip into it. To check information. To look up answers. And it has achieved the happy balance of having a good technical aspect whilst remaining useful. The explanations are very clear and, even when describing complex principles, are structured in a very understandable way.

What quietly comes across is the author’s huge knowledge on the subject. John Lamb has over 40 years of practical experience in the field of oxygen measurement and monitoring, from medicine to technical diving applications.

“When it comes to oxygen sensors there are lot of myths and misinformation available at the touch of a key,” stated author John Lamb. “This book provides accurate information, direct to the divers, with the prime aim of increasing their personal knowledge and safety. It covers everything you ever wanted to know about oxygen sensors and oxygen, but didn’t know who to ask.”

Whilst updating this book Lamb called upon other experts in this field – Kevin Gurr, Martin Parker, Paul Raymaekers, and Dave Thompson, amongst others, and asked them to contribute to this edition.

John Lamb’s book, “Oxygen Measurement for Divers” is exactly what we have been waiting for. This book is a must read for any diver using any form of oxygen analyser, whether it is in a simple Oxygen Analyser or in a complex rebreather. – Paul Toomer, Director of Diver Training, RAID Diver Training Agency

This is an invaluable resource and should be compulsory reading for any rebreather diver. – Mark Powell, SDI /TDI / ERDI Training Advisory Panel

‘Oxygen Measurement For Divers’ can be purchased in two formats: as a paperback, direct from Vandagraph ( for £15.00. Or, as a Kindle book for £7.50.

John Lamb’s first edition, ‘The Practice of Oxygen Measurement For Divers‘ is also available via Amazon.

Roz is the Founder of The Underwater Marketing Company, Co-founder of EUROTEK, and established TEKDiveUSA. She is a PADI IDC Staff Instructor, a BSAC Advanced Instructor, and a rebreather and Trimix diver. Before moving into the PR field she worked as a full time recreational instructor in the UK and abroad, on History Channel and National Geographic documentaries, as a safety diver, and modelled underwater.

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Jeff chats to… Richard Corner from Mares about liveaboards and training with SSI (Watch Video)



In this exclusive Zoom interview, Jeff Goodman chats to Richard Corner, UK Watersports Category Manager at Mares, about the complete experience for all aspects of diving with Mares, their liveaboard adventures with the purchase of, and the Mares/SSI combination.

Last in a series of four videos.

Rather listen to a podcast? Listen to the audio HERE on the new Scubaverse podcast channel at Anchor FM.

For more information, visit, and

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Dive on with DIVER Magazine’s December 2020 issue



DIVER aren’t calling it the Christmas issue because that’s all up in the air but their theme is full of cheer – underwater treasures to be found in our own backyards!

  • Be The Champ! Special: An extended 100th edition of Alex Mustard’s revered monthly column – with the cream of underwater photographers contributing their own pearls of wisdom.
  • Gun Sites: Two tales of individual divers’ exciting weapons hauls – in Cornwall and in Portugal
  • Treasuremen of Bermuda: Story behind one of the most valuable shipwreck treasures ever recovered
  • Wreckful of Ming: Tech divers discover a thrilling cargo of porcelain south of Phuket
  • Dad Found It: Our correspondent dives a sunken Roman city in southern Italy 50 years after her father discovered it
  • Deep Giants: A marine biologist tends her gorgonian garden – in the 100m zone
  • Road Trip 2: The dive tour of Europe continues as our long-term trippers have fun in summertime UK
  • Timepieces: They might not be necessities but diving watches are still prized accoutrements – here’s a guide to 25 of the latest
  • Twilight Zone: Experience the highs and the lows of Curaçao – with the aid of a submersible

Download your copy of the December 2020 edition of DIVER here!

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Sharks Bay Umbi Diving Village is a Bedouin-owned resort with stunning views and a lovely private beach. It is ideal for divers as everything is onsite including the resort's jetty, dive centre and house reef. The warm hospitality makes for a diving holiday like no other. There is an excellent seafood restaurent and beach bar onsite, and with the enormous diversity of the Sharm El Sheikh dive sites and the surrounding areas of the South Sinai, there really is something for every level of diver to enjoy.

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