The SSI Technical Extended Range course syllabus builds on the skills and techniques learned as an Extended Range Trimix Diver. During this course, you will go beyond the no-decompression limit, increasing the depth and duration of your dive. Using technical equipment and an XR Sidemount or a Total Diving System with a double tank,, the Technical Extended Range course provides avid dive explorers with the training they need to independently plan and conduct dives with gas mixtures, with unlimited decompression, to depths of up to 60 m. You will receive SSI Technical Extended Range certification after completing this course.