i770R Bluetooth
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i770R Bluetooth
LEG3ND MBS
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Description

Features:

1st Stage

  • Compact machined first stage based on the expedition tested Apeks DS4 platform.
  • Break through, innovative over-moulded first-stage endcap and environmental diaphragm helps prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage.
  • Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance.
  • Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth.

2nd Stage

  • Compact and lightweight second stage improves comfort and helps reduce jaw fatigue on long duration dives.
  • High performance pneumatically balanced lever operated poppet valve.
  • Large, over moulded self-flushing and controllable purge button.
  • Ergonomic Venturi lever is easy to use and locate.
  • Flexible nylon braided hose has better cold water performance than a traditional rubber hose.
  • Standard metallic hose connection for interchangeability.
  • Comfo-bite mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place.
  • Re-useable mouthpiece clip makes it simple to change mouthpieces in the field.
  • Durable and flexible rubber exhaust tee provides excellent bubble diversion.

Specs:

Connections Yoke
Type of first stage Over-balanced diaphragm design, environmentally sealed
Body Type One piece forged body
Weight Yoke 1st stage – 763g

2nd stage – 154g

Number of HP ports 1 (7/16″ UNF)
Number of MP ports 4 (3/8″ UNF)
Environmental Dry Kit Standard
First stage exterior Satin
Coldwater Use Yes
Type of second stage Pneumatically balanced
Opening Effort Control Knob No
Integrated Venturi Lever Yes
Mouthpiece Comfo-bite™
Exhaust tee Standard, one set
Heat Exchanger for freezing resistance Yes
Hose type Braided Flexi-hose
Overall work of breathing (WOB) scores Avg. 0.90 joules/liter
Nitrox compatible Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%.