Semi-Closed Rebreather Diver (Submatix ST100)
This is the Submatix ST100-specific version of TDI's semi-closed rebreather entry-level course. Students learn ST100-specific configuration, operation, gas management, and unit-specific emergency procedures. Entry rebreather certification with ST100 equipment before advancing to CCR training.
Prerequisites
Minimum age 18; TDI Nitrox Diver or current enrollment (or equivalent).
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Minimum 5 dives totaling 125 accumulated minutes on Submatix ST100 unit. Maximum depth 40m/130ft using nitrox, no decompression diving. Demonstrate ST100-specific operation, gas management, buoyancy, and emergency procedures.
No instructors or dive centres found offering this course.
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.
Common questions about TDI Semi-Closed Rebreather Diver (Submatix ST100)
What are the prerequisites for TDI Semi-Closed Rebreather Diver (Submatix ST100)?
TDI's standards require: Minimum age 18; TDI Nitrox Diver or current enrollment (or equivalent).
What is the minimum age for TDI Semi-Closed Rebreather Diver (Submatix ST100)?
TDI's standards state: Minimum age 18.
How deep can you dive with TDI Semi-Closed Rebreather Diver (Submatix ST100)?
TDI's standards for TDI Semi-Closed Rebreather Diver (Submatix ST100) set a maximum depth of 40 m.
What does TDI Semi-Closed Rebreather Diver (Submatix ST100) training involve?
According to TDI's published standards: Minimum 5 dives totaling 125 accumulated minutes on Submatix ST100 unit. Maximum depth 40m/130ft using nitrox, no decompression diving. Demonstrate ST100-specific operation, gas management, buoyancy, and emergency procedures.