TEC KURSE
EXTENDED RANGE DIVER
The Extended Range Diver course is designed for divers who want to further develop their technical diving skills and perform more advanced decompression dives.
During the training, you will learn how to plan and conduct dives to a depth of 55 meters using two decompression gases.
This is the next step in development for divers who want to expand their capabilities and gain experience in more demanding conditions.
TEC KURSE
EXTENDED RANGE DIVER
The Extended Range Diver course is designed for divers who want to further develop their technical diving skills and perform more advanced decompression dives.
During the training, you will learn how to plan and conduct dives to a depth of 55 meters using two decompression gases.
This is the next step in development for divers who want to expand their capabilities and gain experience in more demanding conditions.
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Trust the dive center trusted by divers.
Why do divers choose Demon Ray?
- Experience in recreational and technical diving
- Training led by an active TEC Instructor
- Personalized development for every diver
- Focus on technique, control, and safety
WHO IS THIS COURSE FOR?
The Extended Range Diver course is designed for technical divers who have experience in decompression diving and want to further develop their skills at an advanced level.
TEC DEVELOPMENT
V
FOR DEEPER DIVING
Do you want to expand your diving capabilities? You will learn procedures that allow you to plan and conduct dives to 55 meters.
TECHNICAL PROCEDURES
Do you want to improve your gas management and emergency procedures? The training will develop your ability to make conscious decisions during complex dives.
WHAT WILL YOU LEARN IN THE COURSE?
The Extended Range Diver course develops the skills required to perform more advanced technical dives.
During the training, you will learn:
- Advanced decompression strategies
- Use of multiple decompression gases
- Planning dives to depths of up to 55 meters
- Safety procedures during technical dives
- Problem solving and emergency management
The goal of the course is to improve control, enhance safety, and prepare divers for even more demanding dives.
COURSE INFORMATION
- Minimum age: 18 years old
- Prerequisite: Advanced Nitrox Diver
- Health requirements: Medical fitness to participate in the course.
- Theory: Theoretical module based on the student manual and instructor-led lectures.
- Practical training: Practical module in open water.
- Total dive time: Minimum 240 minutes
- Maximum depth: 55 meters
- Practical exam: Conducted during open water dives.
- Theoretical exam: Online test
- Certification: Extended Range Diver
HOW DOES THE COURSE WORK?
From advanced decompression planning to conducting more demanding technical dives.
THEORY AND DECOMPRESSION STRATEGIES
You will learn advanced decompression strategies and the principles of dive planning using multiple gases.
GAS MANAGEMENT
You will learn how to safely use two decompression gases and properly plan gas switches during a dive.
TEC PRACTICE
During open water dives, you will practice technical procedures, emergency situation management, and the execution of dives to 55 meters.
WHO WILL TRAIN YOU?
My name is Beniamin Schydlo, and I am the owner of the Demon Ray Dive Center.
I am a Technical Diving Instructor who regularly uses both the Sidemount configuration and Twinset during deep dives.
To me, technical diving is much more than an equipment configuration. It is a mindful approach to diving, where every detail matters and there is no room for random movements or compromises. Regardless of the configuration you choose, the foundation is precision, perfect trim, complete control, and deliberate decision-making underwater.
I train divers and instructors in both recreational and technical diving. I teach Sidemount and Twinset configurations, focusing not only on equipment knowledge but, above all, on developing the skills for safe, efficient, and mindful diving.
Diving is more than just what I do.
Diving is part of who I am.
WHAT IS INCLUDED IN THE COURSE PRICE?
Everything you need to develop your skills in advanced technical diving.
TRAINING MATERIALS
Official training materials and the knowledge you need to continue your technical diving development.
TECHNICAL KNOWLEDGE
You will gain knowledge of advanced decompression, the use of multiple gases, and technical safety procedures.
IN-WATER PRACTICE
You will develop your skills during training dives with a total dive time of at least 240 minutes.
PREREQUISITES
The next step in your technical diving journey
ADVANCED NITROX DIVER
A valid Advanced Nitrox Diver certification is required to participate in the course.
TEC EXPERIENCE
The course is designed for divers with technical diving experience who are ready to apply more advanced procedures.
READY TO ADVANCE
The training requires a conscious approach, good organization, and the willingness to work on the details of diving technique.
Why Demon Ray?
Develop your TEC skills with an instructor experienced at the highest level of diving.
TECHNICAL EXPERIENCE
The training is conducted by an instructor specializing in technical diving and advanced equipment configurations.
INDIVIDUAL ASSESSMENT
Every element of the training focuses on improving technique, control, and the conscious execution of procedures.
ADVANCING TO THE NEXT LEVEL
Extended Range Diver pozwala kontynuować drogę TEC i przygotować się do jeszcze bardziej zaawansowanych nurkowań.
faq
Is Extended Range Diver the next step after Advanced Nitrox Diver?
Yes. Advanced Nitrox Diver is the required entry level to begin the Extended Range Diver course.
How deep can you dive after completing the course?
After completing the course, you will be able to plan and conduct technical dives to a depth of 55 meters.
How many decompression gases are used during the course?
The training includes the safe use of two decompression gases.
How many dives does the course include?
The course includes open water dives with a total dive time of at least 240 minutes.
Does the course include an exam?
Yes. The course concludes with a practical exam conducted during the dives and an online theoretical test.
What can I do after completing the Extended Range Diver course?
The course allows you to continue your development in technical diving and progress to further advanced levels.
READY FOR THE NEXT LEVEL IN TECHNICAL DIVING?
Expand your capabilities, learn advanced decompression strategies, and gain the skills required for technical dives to 55 meters.
Extended Range Diver at Demon Ray — more depth, more control, more possibilities.
