• SSI XR Extended Range
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SSI XR Extended Range
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XR Extended Range – Is the first step in to technical decompression diving. You will gain the knowledge to give you a thorough understanding of how a full technical rig is selected, assembled, and used. The extra redundancy and freedom that a Technical Extended Range Total Dive System will give you will carry though all of your future technical dives and training programs. You will be qualified to dive to 45m with a single gas switch up to oxygen for accelerated decompression with up to 20 mins of decompression obligation. XR Extended Range is also your introduction to Trimix (helium based breathing gases) to limit nitrogen narcosis. 

  • 1 x 2 Hour Pool Sessions
  • 2 x 3 Hour Classroom Sessions
  • 6 x Open Water Dives
  • 45M Qualification
  • 20 Mins Accelerated Decompression
  • Helium based back gas
  • Decompression gas up to 100%


  • Deep Diver
  • Nitrox Diver
  • 50 Logged Dives


  • XR Extended Range Nitrox certification 

If you already qualified as an XR Nitrox Diver you will receive credit towards the XR Extended Range Program and save £150, Just select course credit from the menu.

This program is also offered as a Exclusive course

Exclusive courses are offered one on one with an instructor on dates and at times that to suit the busy schedule of the modern day professional. 

We have group course starting all the time, buy your program here then follow the steps to get booked in. 

Our pool sessions are held every Friday night at Harvey Hadden Sports Centre Nottingham. Open Water sessions are held at Stoney Cove on Sundays. We can offer personalised dates to fit your calendar just ask.  


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