Horizon SCR
Mares and rEvo Rebreathers have combined their respective years of experience in scuba and rebreather technology along with a very strong manufacturing pedigree, to create a unique semi closed rebreather like no other!
Divers who are seeking a revolutionary SCR approach in a modern system, that is easy to use, natural to dive, designed with all levels of diver in mind and developed to provide the utmost security.
The Mares Horizon SCR is for you.
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4 products
4 products
Intersorb 812
Soda lime is a chemical absorbent. Calcium Hydroxide reacts with the CO2 in the breathing circuit to form Calcium Carbonate which is retained within the absorber unit.
The quantity and grade of soda lime used will have an effect on how long the soda lime will last within the system.
Divers requiring a long dive duration, Intersorb 812 is available in 8-12 mesh particle size to maximize CO2 capacity, results in a higher CO2 capacity and longer duration compared to larger particle size products
In general, for a given volume of soda lime, a smaller particle size material will last longer than a larger particle size material.
Intersorb® 812 is a conventional soda lime Carbon Dioxide (CO2) absorbent comprised of short porous strands, containing mainly calcium hydroxide - Ca(OH)2 – and water.
rEvo recommend only Intersorb 812 to be used in the Horizon SCR.
Available in 4.5 kg tub.
Also available in 20kg tub.
Oxygen sensors in analysers and rebreathers are sophisticated devices that operate through a chemical reaction that generates a small electrical current, which is measured to estimate the oxygen pressure present.
Essentially, an oxygen sensor is an electrochemical generator composed of a lead anode, a gold cathode, and a liquid electrolyte, typically a solution of water and potassium hydroxide. Several environmental factors, such as pressure, temperature, humidity, and the presence of oxygen, influence the chemical reaction. Additionally, manufacturing factors, including the purity and precise quantities of chemicals used, significantly impact sensor performance.
The chemical reaction within the sensor begins upon assembly, continues at a slow rate while the sensor remains in its sealed packaging, and accelerates when exposed to the atmosphere. Over time, this reaction consumes the chemicals, leading to degradation of the sensor and a gradual loss of accuracy and reliability.
Various sensor replacement strategies exist, but most rebreather manufacturers recommend replacing sensors periodically before these performance issues arise due to natural aging and usage. The generally accepted maximum useful lifespan of oxygen sensors in rebreathers is 18 months, with typical lifespans of 12 months or less, depending on usage and environmental conditions.
Manufacturers strongly advise against improper storage techniques such as vacuum packing, freezing, or using inert gases, as these practices can cause irreparable damage to the sensors.
- Scheduled Replacement: Install fresh sensors in the rebreather and replace them after 12 months of use. This aligns with the manufacturer’s recommendations, and annual replacement ensures optimal sensor performance.
- Improper Storage: Some divers remove their sensors after each dive and follow a personal storage routine in an attempt to prolong sensor life. This improper handling may lead to sensors that either malfunction or exhibit unpredictable behaviours.
- At the end of 12 months, sensors are discarded, with the diver assuming the risk of sensor failure due to mishandling.
- Ignoring Manufacturer Guidelines: In some cases, divers disregard the recommended sensor replacement intervals, continuing to use sensors beyond their useful life until they fail.
The rebreather community has established through extensive experience that the effective lifespan of a "10mV in air" oxygen sensor in rebreather applications is between 12 to 18 months.
While most responsible divers adhere to manufacturer recommendations, some continue to question the rationale behind the frequent sensor replacements, suspecting a “hidden agenda” from manufacturers, and opting to extend sensor life on their own terms.
Intersorb 812
Soda lime is a chemical absorbent. Calcium Hydroxide reacts with the CO2 in the breathing circuit to form Calcium Carbonate which is retained within the absorber unit.
The quantity and grade of soda lime used will have an effect on how long the soda lime will last within the system.
Divers requiring a long dive duration, Intersorb 812 is available in 8-12 mesh particle size to maximize CO2 capacity, results in a higher CO2 capacity and longer duration compared to larger particle size products
In general, for a given volume of soda lime, a smaller particle size material will last longer than a larger particle size material.
Intersorb® 812 is a conventional soda lime Carbon Dioxide (CO2) absorbent comprised of short porous strands, containing mainly calcium hydroxide - Ca(OH)2 – and water.
20 Kg tub
*Extra delivery charges apply
Also available in 4.5 Kg tub
Price breakthrough!!
Following the decades of expertise, MARES and rEvo rebreathers have combined, to create a unique recreational, semi-closed Nitrox rebreather that uses electronic technology, to deliver a constant flow of Nitrox gas to the diver.
Designed with one clear purpose: Simplicity!
Now is the time to start your rebreather journey as the popularity of the Horizon has had a massive price reduction.