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Extended Range Nitrox Instructor


This program provides divers with the training necessary to independently plan and conduct limited decompression dives to a maximum depth of 40 meters/130 feet using nitrox mixtures of up to 50% with an equally qualified dive buddy. Upon completion of the program, the diver is certified as follows: SSI Extended Range Nitrox Instructor.

The XR Extended Range Nitrox Diving Seminar include:

A review of all XR Standards and all SSI Dive Center/Resort Standards.
A dive planning session for orientation to the Extended Range Dive Planning Sheets.
A confined water session that includes the presentation and the evaluation of all water skills required in the Extended Range Nitrox Diving program. All skills must be to demonstration standard.
Assist in planning and participate as a team member on at least one (1) Extended Range Nitrox dive.
While acting as an instructor, plan and, conduct at least one (1) dive from the Extended Range Nitrox Diving program. During the dive, the candidate will supervise an assistant or another instructor candidate acting as the student during the training dive.
Demonstrate the ability to rescue an unconscious diver by bringing the diver to the surface from a depth of between 5m and 10m, establishing positive buoyancy, evaluating the diver’s status, removing all equipment and removing the diver from the water. (Assistance may be used ONLY for the handling of equipment once it is removed from the diver).
Complete an appropriate equipment assembly workshop.
Complete the water skills evaluation as outlined in the General Standards.
Complete the Extended Range Nitrox Diving Instructor final exam with a passing score of 90%.

Active status Extended Range Nitrox Diving Instructors may teach, supervise and issue certifications for the following program:

Extended Range Nitrox Diving

The course is taught by SSI / XR Technical Extended Range Instructor Trainer Ivan Karadzic on Koh Tao, Thailand. Ivan has been a technical diver since 2009 and an XR Extended Range Instructor Trainer since 2015.

During the course we will focus on real-life diving, you will get introduced to common learner problems and their solutions, how to properly fit your students in their equipment, equipment maintenance and problem-solving. You will get valuable experience and tips on how to run and sell technical diving courses.


SSI Open Water Instructor 

SSI Enriched Air Nitrox Instructor

SSI Deep Diving Instructor

SSI Diver Stress & Rescue Instructor

SSI Science of Diving Instructor

20 logged dives deeper than 30m

Extended Range Nitrox Diving certification or equivalent


Day One

Standards Overview, Theory, Teaching XR, Equipment Workshop

Day Two

XR Extended Range Nitrox Diving Skills Circuit and Demonstrations, Water Skills Evaluation, Rescue Scenario

Day Three

Teaching XR Extended Range Nitrox in Open Water, XR Extended Range Nitrox Instructor Exam

Included / Excluded

Sidemount equipment rental (if you are already a certified sidemount instructor), stage tank and regulator and dives

Personal diving equipment is not included but can be rented for 500 THB for the duration of the course.

A dive computer is not included but can be rented for 500 THB for the duration of the course.

SSI Professional Fees are not included, they are paid directly to SSI

Price and Booking

45000 THB.

If you want to book the course or have any questions please contact us on

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