Our course is currently approved by both PADI and SSI as a specialty, and is supported by the YMCA Scuba Program and the Brevard Regional Hyperbaric Center. Take the course any time of year. A set of 21 full color flash cards. A printed handout for students to keep, explaining the system and showing the same information as on the flash cards.
Video gives instructions for introducing the system.
Slides available upon request. Take the course any time of year. It is 6 hours of classroom instruction. Teach the course any time of year. A written description of how to make the sign.