Halcyon Symbios Rebreather

COMING SOON

Paragon Dive Group is proud to announce that we will be teaching and diving the Halcyon Symbios CCR. The expected commercial release of the rebreather is scheduled for the fall of 2025. We are forming classes for 2026 and taking deposits for unit sales now!

Please reach out to our team right away for details

SCRUBBER

Scrubber type - specify all that apply: Axial
Scrubber volume (Kg): 2.7kg
Temperature stick (scrubber monitoring): No
Scrubber duration CE: CO2 1.6l/m 5mb bypass — TBC

LOOP

Work Of Breathing (WOB): CE 100m test, trimix, horizontal — TBC
Work of Breathing (WOB): CE 40m test, Air, vertical — 1.6 joules/Litre
Active loop volume (liter): CE Test
Counterlung volume (liters) - options?
Backmounted Counterlung: No
Frontmounted Counterlungs: Yes
Detachable counterlungs (w/o unit disassembly): Yes
Oxygen injection side: Before Scrubber
Loop direction: Right to left
Automatic Diluent Valve: Yes
Diluent Shut-off Valve: No
Bail Out valve (BOV): Yes (Built into the ADV system)
Mouthpiece Retaining Strap: Yes
Flood Resistant - specify: Exhalation Lung has purgable water trap.
All electronics sealed from water ingress

HEAD & SENSORS

Plug and Play Head Components - user replaceable? No
User Upgradeable Firmware: Yes
Number of O2 cells - options(?) 3 (2 × Analogue + 1 × Solid state or 3 × Analogue)
Number of solenoids: 1
Means of O2 addition (solenoid only, leaky valve, hybrid): Solenoid + MAV
Solid state O2 sensor: Yes, Greenflash
Independent secondary O2 reading:
Oxygen cell tester (>1bar). Specify built-in or add-on (pot): No
Helium sensors: No
Gaseous CO2 sensors: No
Dual Computers: Yes
Independent electronics (specify): 2 monitoring systems in the head, each with independent transmitters
CCR Bail-Out mode: No
Battery type: Rechargeable
Battery life dive time (hours):