SSI Extended Range

Life Begins at 45 m, Extend Your Range

We know, 40 metres is not enough. Some of the best wrecks and most amazing sites are below the recreational range, and you need technical diving gear as well as knowledge and skills to reach them.

The Extended Range program qualifies you to dive to 45 metres using nitrox mixes up to 100% oxygen for accelerated decompression times. You learn to plan and execute up to 25 minutes of decompression using one stage decompression gas. The programme can only be completed wearing specialized technical diving equipment. The training can be conducted using air or limited Trimix.

We offer rental gear as part of the course, so you don't have to worry about getting all of the specialised equipment at first!

    • Minimum age 18 years
    • Deep Diver specialty diver
    • Enriched air nitrox diver
    • 50 or more dives
    • Have a current medical examamination for scuba diving and signed medical questionnaire
    • by a licensed medical practitioner not older than 1 year old
    • 4-5 days
    • Lifetime (Diamond) Online & Offline access to the digital training materials
    • Equipment rental (excluding required equipment)
    • All gases, except helium 0.040€ / ltr
    • Digital certification
    • Basic diving knowledge review
    • Decompression theory
    • Technical diving procedures
    • Decompression planning and software
    • Equipment configuration workshop
    • Confined water training
    • 6 Open water training dives, (3 are real staged decompression dives)
    • 2 x Mask
    • Fins
    • Wetnotes/slates
    • 1 x dive computer and bottom timer
  • This course includes digital online programme kit.

    • Digital SSI Certification Card (D-Card)
    • Digital Training Materials including Video Streaming/Download
    • Material Customization by Interactive Review Questions, Personal Notes and Bookmarks
    • Online & Offline Access via DiveSSI App - Available for iOS and Android Mobile Devices
    • Lifetime Access and Free Future Updates

From blue to black and back!

SSI Extended Range


  • 560 €

Upon booking you are required to pay a deposit of 50 €.

Give us a shout

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Currently we operate only in Koh Tao, Thailand, visit our page

Photo credits to Fat Fish Movies, Anna Kekkonen, Irene Stangierska, Fredrik Lindblad and Mikko Paasi.
Copyright 1987 - 2017 Koh Tao Divers. All rights reserved. In collaboration with Waterworld Diving Malta - Permit No: Dive 0082