Scubapro MK2 Evo / R105 Style:DIN The arm clamp systems are

The arm clamp systems are designed with a spring tension for positive retention of your clamped accessory

combined with Scubapro's top-of-the-line second stage

plus you can share and review dives in the Garmin Dive app downloaded to a compatible smart phone

Balanced diaphragm first stage (environmentally sealed)

Scubapro MK2 Evo / R105 Style:DIN The arm clamp systems areThe MK2 Evo first stage combined with the R105 second stage is a simple but reliable unbalanced regulator system, very popular among diving schools for rental, beginners as well as experienced recreational divers as backup regulator. Durable, built to last and delivering smooth, dependable air. The R105 features a compact casing based on the S620 Ti, including anti scratch front cover and metal classic downstream valve design, a dive pre dive VIVA