SCR Extended Range (Horizon)

Maximize your SCR training with the SCR Extended Range program. Take your semi-closed rebreather diving deeper as you learn to safely dive to a maximum depth of 40 meters / 132 feet. With this high level of SCR rebreather dive training, you will be able to dive well beyond the recreational no decompression limits.

SSI’s advanced SCR training methods will sharpen your in-water skills and strengthen your teamwork. Start your SCR Extended Range course online today!

What Will You Learn?

The SSI SCR Extended Range program introduces you to diving beyond the recreational no decompression limits. You will learn the concepts of self-sufficiency and redundancy that are essential when conducting a rebreather dive. Learn to independently plan and conduct limited decompression dives to a maximum depth of 40 meters / 132 feet using the Mares Horizon semi-closed rebreather (SCR).

Become completely self-sufficient with SSI’s unique SCR training techniques and Extended Range skills. Learn SCR dive planning, in-water skills, problem-solving techniques, and emergency scenario management. Take your SCR rebreather training to its highest level with the SSI SCR Extended Range program today!

What Will You Do?

  1. Complete the Digital Learning materials found in this manual. These materials are self-paced, and you can complete them anywhere, anytime, once you download them to your MySSI app
  1. Complete the Academic Sessions and Pool/Confined Water Sessions with your SSI Dive Professional
  1. Complete the SCR Extended Range Dives

Course Schedule

Recommended hours for completion: 24-30. The number of classes, hours and sessions per day are set by the individual instructor, based on student needs, student ability and water conditions.

Course Price

Get in touch with an SSI Training Center for the same.

Student Learning Materials Price

INR 13,200

Course Prerequisites

Minimum Age: 18
Certification Prerequisites: None
Academic Sessions: Online Program
Pool/Confined Water Sessions: 1
Open Water Dives: 6
Maximum Training Depth: 40 meters / 130 feet
Suggested Duration: 24-30 hours

Equipment Requirements

SCR Total Diving System

  • A semi-closed rebreather that has CE-type and SSI approval

A single bottom gas cylinder (minimum volume: 5.7 liters) and bailout regulator with:

  • Second stage with 1- to 2-meter hose and SPG
  • Low-pressure inflator hose or quick-connect compatible with the unit
  • Oxygen cleaned as required


  • Mask
  • Fins
  • Exposure suit appropriate for the environment
  • A backup buoyancy device: dry suit or lift bag
  • A cutting device
  • One signaling device for deploying from depth (red surface marker buoy is recommended, but follow local guidelines)
  • A reel or spool (appropriate for the maximum planned depth) One surface signaling device (whistle or similar)
  • Logbook
  • Manufacturer and/or SSI Pre-Dive Checklist

*Equipment will be provided by your Dive Centre. We recommend that you should get your own gear once you become a certified diver.

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