ABV® for Spectrum FFM Prisma Tilt compensated digital compass

Tilt compensated digital compass

Flatlock stitching ensures structural durability while maintaining a low-profile seam for reduced irritation during prolonged activity

Pat 6272693 B1

you develop the skills to organize and direct a variety of scuba diving activities

Multiple-level safety factor configuration

ABV® for Spectrum FFM Prisma Tilt compensated digital compassDescription The most anticipated accessory for the Spectrum Full Face Mask is finally here! The Ambient Breathing Valve (ABV) allows a diver to breathe ambient air while at the surface, thus conserving tank air! This is a great addition to your Spectrum mask.