This program qualifies you to dive to 45 meters using nitrox mixtures of up to 100%, and 25 Minutes of accelerated decompression using hyperxoic mixes as a one stage decompression gas. The program can be completed on either backmount or sidemount configuration.

become a technical diver today

Entry level technical diving course, SSI Extended Range provides the fundamentals towards developing yourself to become a technical diving or a recreational diver with stronger knowledge towards scuba diving. Learn how to conduct safe decompression dives using a stage cylinder with nitrox mixes up to 100%, to depths of 45m.

This course can be done using Trimix as well! Or take the SSI Extended Range Nitrox Diving and SSI Extended Range certification combo!


SSI Extended Range Nitrox Diving


SSI XR Nitrox Diving and SSI XR


SSI Extended


Extended Range Essentials


  • Be At Least 18 Years of Age or Older
  • Enriched Air Nitrox 40% certification
  • Deep Diving certification
  • 50 logged dives


  • All Course Materials
  • 2 Theory Classes
  • 1 Pool Session
  • 6 Open Water Dives over 2 weekends
  • Instructor Fees
  • Certification Fees


Extended Range Course qualifies you to

  • Dive to depths up to 45 meters using nitrox mixtures of up to 50%
  • 25 minutes of back gas decompression using a one stage decompression gas


Learning technical diving brings you back to your open water days where new equipment and skills are being taught. To begin your journey in explore the vast unknowns of the oceans, SSI Extended Range is your ticket to a lifetime of experiences and adventure.

2 Theory Sessions

1 Pool Session

2 Weekend Trips

Theory Session

Our theory and knowledge component is broken into two parts:

  • Online independent study via SSI Online Learning
  • Theory class

Using existing materials developed my SSI, you can now learn at your own pace. Giving you the time and space to internalise concepts and through examples and section reviews.

After which, there will be 2 theory session where an instructor will go through additional queries, actual application concepts and provide value-added knowledge to get you ready for the remaining of your course components.

2 Session: Wednesday and Thursday, 7pm – 10.30pm
Location: Gill Divers Shop, 37b Hongkong Street

Pool Session
Weekend Trip Session


Taking the Extended Range Course will ensure that you acquire the foundational skills and diving experience needed to be able to do technical dives and explore the vast unknowns.

  • Immerse in an interactive training on the basic principles of scuba diving.
  • Acquire a full understanding and knowledge in exploring the Oceans.
  • Become an expert on foundational technical diving techniques and skills.
  • Master the basics of safe and precise technical diving.
  • Ability to do open water dives with a maximum depth of 45 meters.
  • Advantage of joining a community of technical divers worldwide.

After certification, you will be able to dive anywhere in the world with a buddy up to a depth of 45m with limited decompression incurred.

what's Next?

The urge to go deeper and explore the vast ocean doesn't stop here. Extend your Range, Limits and Emotions with the other SSI XR Courses we have.

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