pathfinder ccr rebreather

PATHFINDER Rebreather Course info

ISC LOGOManufacturer: Inner Space Systems Corporation USA

Model: Electronic controlled oxygen injected APECS Megalodon Pathfinder e-CCR

General Description: The Pathfinder rebreather course is opening the door for the recreational diver or female ccr divers (small frame) with its extreme compact size and backmounted shoulder counter lungs. Only one tank is installed onboard, the oxygen tank. Dilluent and bailout are combined in the off-board bailout tank.

The Pathfinder is now approved CE for recreational rebreather diving. PADI has taken the Pathfinder on board to teach their OW and Advanced Recreational Courses on.

Type of Pathfinder Rebreather: CCR electronically controlled with three oxygen sensors but can be used manually with diluent and oxygen inflators mounted on the counter lungs.

Number of handsets: One hand sets for the Pathfinder e-CCR. One ISC handset with easy to use electronics menu and excellent milivolt ( mV ) readings to see when the sensors expire or for oxygen calibration. Great display of batteries voltage to see when they are ready for a new set.

Spliced in factory installed Shearwater handset are an option with decompression algorithm.

Location of main electronics: The main electronics are located in the head, next to the sensors, solenoid and battery compartments.


Info displayed in the handsets: No decompression information, time or depth is displayed at this point in time. The Po2 is displayed on the main default screen. Set points can be chosen ranging from manual to 0.5, 0.7, 1.0, 1.1, 1.2, 1.3 and 1.4.

Heads Up Electronics ( HUD ): Optional HUD that is a must have item, that works great. Amber blink on single LED version or red and green blink togehter on two LED version: Po2 is 1.0

Red blink: Per red blink a Po2 of 0.1 below Po2 of 1.0. Rapid fire red blinking is Po2 below 0.5

Green blink: Per green blink a Po2 of 0.1 above Po2 of 1.0

Sensors: Three Theledyne R22D sensors are used in the original manufacturer version. (Other sensors such as the A.I. sensors can be used)

Batteries: Battery pack utilizing AA batteries that have to be soldered together into packs of 5 sitting in two independent battery compartments inside the stack and lid together with the main switches. Larger D size Lithium cell packs can be used as well as 9 V block batteries with cable adapter.

Automatic Dilluent Valve ( ADV ): Optional available with older larger version utilizing a Scubapro second stage and newer streamlined version designed by Innerspace Systems.

ADV 2 Rebreather Pathfinder
ADV  Rebreather Pathfinder
Pathfinder from the top
Image from top Pathfinder rebreather info
loop Pathfinder components
Pathfinder components Breathing Loop
Lungs Pathfinder CCR
Lungs Pathfinder CCR
Scrubber Pathfinder CCR
Scrubber Pathfinder CCR

Diveable weight: Around 35lbs/15kilos with absorbent and depending on what size and material of onboard tanks was chosen.

Travel weight: Unit can be shipped in carry on without tank and scrubber, excellent choice for people who travel a lot, especially by plane. (around 7kg)

Canister design: Unit is designed for the Micropore Extended Air cartridges with two special adapters.

Canister duration: Four hours duration in warm water and three hours in cold water.

Absorbent: Micropore Extend Air cartridge.

Counter lungs and position: The Manta counterlung is a backmounted shoulder counterlung sitting on the divers shoulders cleaning up the profile and is leaving the chest area free and uncluttered.

Flood recovery: Good flood recovery due to large overpressure valve in exhalation counterlung. Water trap in bottom of stack housing, closed and water tight battery compartment as well as electronics.

Support locations worldwide: U.S.A., Canada, Mexico, Europe, Asia, Australia, South America

Special uses of unit: Recreational CCR tested capabilities to 300 feet / 90 meters depth. Extremely good to travel with. The CE approval is up to 60 meters.