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Tec 40 Course
Tec 45 Course
Tec 50 Course
Tec 65 Trimix Course
Tec 75 Trimix Course

DSAT TecRec courses provide the techniques and procedures necessary for diving beyond recreational dive limits. These are some of the most intensive, yet exhilarating, courses you'll find.

Technical diving isn't for everyone but if this type of diving appeals to you and you're willing to accept the risks, responsibilities and obligations, you'll find it one of the most rewarding dive experiences you'll ever have.

PADI / DSAT  Tec 40 Course

The Tec 40 is the first rung in the Tec Deep ladder, the first subdivision of the full PADI Tec Deep Diver course consists of the first four dives. Because you can do one of  these dives in confined water (such as a swimming pool), many divers start the Tec 40 courses in the winter months, ready to continue in open water when spring arrives. You will learn to use decompression software and dive computers to plan and make decompression dives with no more than 10 minutes of total decompression and not deeper than 40 metres/130 feet. By the end you will be qualified to use a single cylinder of decompression gas with up to 50 percent oxygen (EANx50) to add conservatism to the required decompression.

Pre-requisites for this course:

Be a PADI Advanced Open water diver (or equivalent)
Be a PADI Deep Speciality diver (or equivalent)
Be a PADI Enriched Air diver (or equivalent)
Have a minimum of 50 logged dives, of which at least
          o 10 dives must be on enriched air
          o 12 dives must be deeper than 18 metres/60 feet
          o 6 dives must be deeper than 30 metres/100 feet
Obtain a dive medical signed by a physician


Course Price:  £400 (incl. manual)

PADI / DSAT Tec 45 Course

The Tec 45 course picks up where Tec 40 leaves off and  takes your training as a tec diver further and deeper. It is the second subcourse in the full PADI Tec Diver course. Building on the Tec 40 program, the Tec 45 module covers the skills, equipment and planning needed to dive to a maximum of 45 metres/145 feet. The knowledge to plan and execute single and repetitive decompression dives using a single stage cylinder of EANx or oxygen to accelerate or add conservatism to the decompression stops
There would be no time limit to amount of decompression.
Prepare for and respond to foreseeable technical diving emergencies. Master the basic skills and procedures you’ll need as you move into deeper technical diving

 Pre-requisites for this course:
 PADI Tec 40 certification (or equivalent)
 50 logged dives with the following:
 - 12 dives were made with enriched air nitrox deeper than 18 metres/60 feet
 - 6 (with or without EANx) dives were deeper than 30 metres/100 feet

Course Price:      £400

PADI / DSAT Tec 50 Course

Building on the Tec 40 and 45 course foundations, the Tec 50 (formally Tec Deep Course) consists of five Practical Applications, and five Training Dives. Using twin manifolded tanks for the back gas plus two side-mount tanks with up to 100% oxygen for decompression. Tec Deep training  takes  three days to complete. The course will qualify you to make gas switch, extended no decompression dives, decompression stop dives and accelerated decompression dives using air, Nitrox or up to 100% oxygen to 50m / 165ft, using technical diving equipment and procedures.

Theory is home-study or classroom with  workbook with six Knowledge Reviews and  Final Exam to complete.

Pre-requisites for the course are:

  • PADI Advanced Open Water Diver (or qualifying certification from another organization)

  • PADI Rescue Diver (or qualifying certification from another organization)

  • PADI Enriched Air Diver (or qualifying certification from another organization)

  • PADI Deep Diver (or qualifying certification from another organization)

  • PADI TEC 45 certification (or equivalent)

  • Have a minimum of 100 logged dives of which 20 must be enriched air dives, 25 dives must be deeper than 18 metres/60 feet and at least 15 dives must be deeper than 30 metres/100 feet

  • Minimum age: 18 years old

Course Price:   £400

Do the entire Tec Deep course (12 dive) for £1100 inc manual



This new course opens up the advantages of trimix to the TEC 50 diver (or equivalent). After certification divers are qualified to make multi-stop decompression dives that employ EANx and oxygen for accelerated decompression, with any trimix having an oxygen content of 18% or more up to a maximum of 65metres. Five dives are included. Successful candidates may then embark on TEC Trimix  training.

Course Price: £550 inc manual


PADI / DSAT Tec Trimix Course

The pinnacle of DSAT Technical Diving. The  Trimix Course covers training and procedures for Helium based diving to a maximum depth of 90 metres and even deeper. Brand new training materials including diver workbook compliment the courses objective outlines, and includes 5 dives

DSAT Tec Deep Diver or Tec 65 or equivalent (conditions apply)

Course Price:  £650 - £850 (incl. manual)


PADI/DSAT Nitrox Gas Blender
Blending nitrox in an easy to understand- hands on course. In depth info on oxygen handling and Nitrox production. A must for dive professionals and divers alike.

Course Price:           £150

PADI/DSAT Trimix Blender
Building on the basic course. An in depth course covering Nitrox (Adv), Heliox, Heliar and Trimix production. Many dive centres need this qualification. Improve your career prospects or just be self sufficient.

Course Price:           £250

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Each course has certain pre requisites, please ask for details.

Divers to provide own suitable technical diving equipment, equipment can be rented if necessary. Cancellations are accepted no earlier than 2 months before training or travel commences. Refunds will only be issued if course instructor is unavailable to proceed with agreed schedule. Divers should obtain insurance to cover unforeseeable and foreseeable complications including recompression treatment, motorbike accidents, disease and infections. Instructor/Tour Leader reserves the right to exclude participants with no compensation if they exhibit obvious narcotics/alcohol abuse or at the discovery of falsified release form statements.

Boat dives extra
Helium gas extra  @ £0.06 per litre



copyright Mark Ellyatt 2010