The O2ptimaCM Checklist

Transform diving with The O2ptima CM Checklist: Advanced digital checklists, precise timers, comprehensive gear tracking, and eco-friendly prep for all your iOS devices.

The O2ptima CM Checklist app simplifies rebreather assembly with dedicated checklists mirroring the manual lists. Set precise countdown timers for Positive, Negative, and Pre-breathes. Summary view of your build with caution blocks if steps are missed. Manage your build from a simple digital checklist! Help save the planet by moving away from throw away paper every time you dive to a digital checklist in your phone or Ipad!