Extreme diving makes having an extraordinary Octopus even more important. The Atomic M1 oto is a Safe Second that performs equal to its M1 primary dive buddy. Cave diving, cold water and rough water conditions demand backup systems divers can count on when needed. The M1 octo delivers confidence in extreme situations.

If you are diving with a primary specified for higher EAN mixtures, you need a safe second to match. Atomic M1 octo parts used throughout the second stage are identical to the M1 primary model. The M1 octo is factory-ready for EAN mixtures up to 50% or Oxygen mixes up to 80% when special guidelines are followed.

Features:

• Designed for cold water diving featuring thermal heat sink and super-dry exhaust valve.
• Patented Atomic AFC – Automatic Flow Control with Rapid Adjustment Knob for manual detuning in special situations.
• Patented Atomic Titanium Seat Saving Dynamic Orifice prevents wear of the low-pressure seat that extends the service interval and improves reliability.
• Surge-protected front cover for high current scenarios.
• Super-wide exhaust deflector to disperse bubbles.
• Bright Neon Yellow flexible front cover for high visibility.