Ted and Wayne's Scuba Site Rebreather information, links, and homebuilding. Converting BioPak 60's and BioPak 240 modifications to make them work underwater.

OxyCheq ... oxygen analyzers and oxygen sensors OxyCheq is a manufacturer of oxygen analyzers and distributor of oxygen sensors.

Partial Pressure Products - PPO2.com P3 manufactures and sells printed circuit boards & kits for monitoring PO2 in rebreathers or FO2 in analyzers.

K1 Rebreather Site Page This is the K1 Rebreather Site, including GPL/Open Source code for a working handset controller and the schematic and PC Board files (for ExpressPCB) to make the printed circuit boards! Also, full K1 project status is found here.

CCRsense, Oxygen Sensors for CCRs CCRsense - All Sensors Megalodon Ouroboros Classic KISS Sport KISS Cis-lunar MK 15/15.

Omni Divers Underwater Services, L.L.C. Draeger rebreather, authorized facility, instructor trainer, ice diving, DAN instructor, National Association of Professional Diving Specialists, Public Safety Diving Association, advanced nitrox, EANx technical training facility and blending station, trimix gas blender instructor, Technical Diving International, Scuba Diving International, International Association of Nitrox and Technical Divers

HydroSpace Engineering, Inc. Electronics design and manufacturing.