Technical Diver Training in Thailand – Tec 40 to Trimix 90
Alongside our Instructor Development Courses, we offer a complete Tec Diver Training Pathway from entry-level technical diving through to advanced trimix certifications.
Whether you're just starting in technical diving or aiming for deep-exploration capability, our training program can include:
- Tec 40 – entry-level introduction to staged decompression
- Tec 45 – extended depth range & accelerated decompression skills
- Tec 50 – full technical diving with accelerated decompression gases
- Tec Sidemount options
- Trimix 65 & Trimix 90 – advanced helium-based deep diving
- Multi-gas planning & redundancy configuration
Hands-on training with an experienced technical instructor
Explore Tec Diving Courses
CHOOSE YOUR TEC TRAINING LEVEL
Choose the Tec program that fits your current level and objectives — then explore the course details.
Your Tec training will be led by Ed Bosworth, a highly experienced technical diver and instructor with thousands of logged dives across Khao Lak, the Similan Islands, and other major technical diving locations.
Ed is known for his calm teaching style, safety-focused mindset, and clear, structured approach to technical skill development. He excels at building confidence in divers transitioning beyond recreational limits.
Whether you're working on deep trimix procedures, stage-bottle deployment, gas-switching protocols, or advanced decompression planning, you'll be learning from someone with real-world expedition experience — not just classroom theory.
EQUIPMENT, GASES & LOGISTICS FOR TEC TRAINING
As a technical diver, precision planning, equipment familiarity, and gas management are essential. During your Tec training you'll gain practical competence in:
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Twinset & sidemount configuration management
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Backup gas systems & redundancy planning
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O₂ cleaning procedures & gas-handling protocols
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Decompression bottle selection & reliable stage rigging
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Gas-switching discipline & verification routines
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Gas-mixing principles including Trimix blending & analysis
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Use of dive computers for Tec profiles and multi-gas switching
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Emergency gas-sharing drills & equipment failure simulations
You’ll work directly with experienced instructors who guide you through best-practice methodologies used by professional deep divers around the world.
PREREQUISITES FOR TEC TRAINING & CANDIDATE PROFILE
To get the most from your Tec pathway, candidates should ideally:
- Already be comfortable in the water with solid buoyancy & trim
- Have recent diving experience in varied conditions
- Be proactive with planning, awareness, and situational control
- Be willing to operate within strict procedural discipline
- Have a mindset focused on precision, teamwork, and safety
- Understand that Tec is a step-by-step progression — not a race
If you’re unsure where you fit within the Tec ladder, just ask — we’ll help you determine the right starting point, whether that’s Tec 40 or directly into Tec 45 / Tec 50 depending on experience.
READY TO START YOUR TEC JOURNEY?
If you’d like guidance on which Tec level to begin with, or want to discuss training goals, just reach out — we’re happy to help you plan the right progression.
Contact Ed: training@professionaldivertraining.com
Or send a message via our contact page.
Get in Touch