About the Course

What Is Extended Range Foundation?

“Double the tanks, double the adventure. Twinset diving unlocks new depths and extends your dive beyond your recreational limit.”

Twinset diving is a scuba diving configuration where the diver uses two cylinders, typically of the same size and capacity, connected together. The twinset, or double tanks, provides redundancy and extended gas supply for longer dives. This setup is commonly used in technical diving, allowing divers to explore greater depths and stay underwater for longer periods.

Before You Start

Prerequisites

  • Open Water certification
  • 24 total dives
  • 16 years of age

Good To Know

Course Details

Duration

2 Days

  • Theory / equipment setup × 1 day
  • Pool sessions × 2 days
  • Ocean open water × 2 days (min 4 dives)

What's Included

  • Specific XR equipment (BCD & Reg) rental
  • All teaching material & certification
  • All in-water activities

What's Not Included

  • Transportation
  • Accommodation
  • Standard equipment rental (mask, fins, wetsuit, dive computer, etc.)
  • National park fees

Remark

Location: Bangkok / Samae San.

Ready to Book Extended Range Foundation?

Message us to ask questions, check schedules, and book your course.

© 2026 TechMate Scuba Club. All rights reserved.