Extended Range Nitrox (40m)

About the Course

The SSI Extended Range Nitrox Diving program trains divers to independently plan and conduct limited decompression dives to a maximum depth of 40 meters. Using nitrox mixtures of up to 100%, you’ll develop the skills to safely dive with recreational or Extended Range Total Diving Systems and procedures, accompanied by an equally qualified dive buddy.

This course focuses on advanced techniques, equipment configurations, and the principles of buoyancy, trim, and propulsion for Extended Range diving. By the end of the program, you’ll be certified to conduct decompression dives with staged stops of up to 15 minutes.

If you're ready to expand your diving knowledge and skills, contact us to book your course and start your journey into Extended Range diving!

Prerequisites

• Certifications: Deep Diving and Enriched Air Nitrox 40%
• Minimum of 24 logged dives

What's Included

• Digital Learning Materials on www.divessi.com
• Pool fees (if required)
• Cylinder rental (additional gas costs apply)
• Comprehensive academic and practical training tailored to your needs
• Debriefing and feedback after every session

Optional: Kit rental can be arranged, but we recommend using your own equipment for this course.

What's Not Included

• Entry fees to open water dive sites
• Gas fills beyond air (nitrox blends charged separately)

Course Structure

1. Academic and Equipment Configuration

   • Begin with course materials online via SSI.
   • Attend a tailored academic and equipment configuration session to set up your kit and discuss core diving principles, including buoyancy, trim, and propulsion.
     
     

2. Confined Water Training

   • Swim test and skill development for buoyancy, trim, and propulsion.
     
     

3. Open Water Training (2 Days)

   • Dives 1 & 2: Max depth 30 meters
   • Dives 3 & 4: Between 30–40 meters, with one dive to at least 35 meters for certification

To complete the course, you’ll need to:

• Pass the Extended Range Nitrox Diving final exam with at least 80%.
• Independently plan a dive using the Extended Range Dive Planning sheet.

Duration

• 16 hours (2 days of open water dives + academic development)
• Maximum training depth: 40 meters

Certification and Progression

Upon successful completion, you’ll be certified to conduct Extended Range Nitrox dives using the configuration and procedures from training. You can also credit these dives toward the SSI Extended Range program if completed with an Extended Range Total Diving System (twinset or sidemount).

If completed with a recreational Total Diving System or single-cylinder Extended Range Nitrox configuration, only academic credit will apply.

Locations

The open water training will take place at dive sites suitable for the required depths. Check our calendar for upcoming courses or contact us to schedule your training.