The PADI Equipment Specialist course takes about four hours. It’s an immersive and interactive session that consists of a PowerPoint presentation, lots of hands-on time with various gear, and extensive Q&A.
Among the many things you’ll learn will be: gear selection, wetsuit repair, regulator adjustment, proper gear rinsing (check out a great video about that very subject here), testing a BC for leaks, cylinder inspection, different gear configuration ideas, and building a proper Save-a-Dive kit so that you’re able to handle most any minor equipment emergency that might arise.
You won’t need to bring anything with you except maybe something with which to take notes. If you want to bring your own gear and learn more about it specifically, you’re more than welcome to do that.