Mares Horizon SCR

Training is required with a purchase.  Call for details.


SKU: Horizon Category: Brands: ,


This system is designed to be as easy to use as diving Nitrox (EANx), allowing massive extended dive times (3-8 times normal open-circuit times), in a lightweight, highly air portable system that can use non-dedicated gas cylinders. This allows divers to use Nitrox (EANx) to pick up standard cylinders at their destination!

By blending gas to maintain an ideal EANx mix, depending on diver preference, the controller also allows the gas mix to be changed during the dive to extend dive time or decrease decompression obligations. The controller automatically warns a diver if an inappropriate gas mix exists.


  • Height: 54 cm
  • Width: 40 cm
  • Depth: 22 cm
  • Unit weight: 12 kg (without regulator set)
  • Complete non-deco version weight: 13.4 kg
  • Complete full deco version weight: 14.8 kg


  • Two (2) scrubber canisters, each containing 1 kg of CO2 absorbent that can be refilled by user
  • Two (2) integrated weight pockets, each containing a maximum of 2.5 kg of weight
  • Fully adjustable harness system, from XS to XXL
  • Safety gag strap on mouthpiece
  • 2 oxygen sensors
  • Constant oxygen fraction supplied to the diver, adjustable during diving
  • Reverts automatically to full nitrox breathing in case of failure
  • Remaining scrubber time calculated by the dive computer
  • No tools required for preparation, use, cleaning


  • Maximum recommended depth using one stage cylinder as gas supply, no decompression: 30 m
  • Maximum allowed depth using two stage cylinders as gas supply: 40 m
  • ppO2 during use: minimum 0.22 bar, maximum 1.60 bar
  • Water temperature: minimum 4°C, maximum 34°C
  • Allowed nitrox mix: minimum 30%, maximum 99%
  • Approved scrubber material: Sofnolime 797
  • Scrubber material endurance depending on temperature and metabolic oxygen consumption: calculated by the dive computer (i.e. at 15°C or higher, with medium/high oxygen consumption, duration is > 3 h)

The Mares Horizon SCR also features:

  • Three sets of redundant electronics, each with an individual battery system
  • All battery systems can be charged from one single point
  • 2.8” full color, high contrast dive computer screen
  • User adaptable gradient factor decompression algorithm
  • HUD with clear GOOD / FAIL indication
  • Approved to 40m


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