The Scuba Diving International (SDI) Computer Nitrox course is a program that teaches divers how to safely use a programmable dive computer to mix oxygen and nitrogen for diving. The course covers a range of topics, including: 

• Nitrox diving risks: How to manage the risks associated with diving with Nitrox 
• Nitrox diving equipment: How to select the right tools for Nitrox diving 
• Dive computer use: How to use a dive computer for Nitrox diving, even if you've never used one before 
• Nitrox physiology: How the body uses different breathing gas mixtures 
• Nitrox analysis: How to analyze a Nitrox gas mixture 

The course is recommended for certified open water divers who want to advance their skills and knowledge. It can help divers extend their no-decompression times and reduce post-dive fatigue. 

The course can be offered in a variety of formats, including online and in-person.