Abstract: A tank pressure transmitter with integrated breathing gas analyzer and associated methods are provided. The tank pressure transmitter can include a gas sensor which detects a constituent of a breathing gas. The transmitter is operable to compile a constituent reading from the constituent detected, and communicate this constituent reading wirelessly to a dive computer.

Abstract: A tank pressure transmitter with integrated breathing gas analyzer and associated methods are provided. The tank pressure transmitter can include a gas sensor which detects a constituent of a breathing gas. The transmitter is operable to compile a constituent reading from the constituent detected, and communicate this constituent reading wirelessly to a dive computer.

Abstract: A diving jacket for retaining warmth of a diver's torso is provided with an inner surface and an outer surface. The outer surface of the diving jacket is formed from first and second front torso portions fastened to a back portion. A releasable fastener for releasably attaching the first front torso portion to the second front torso portion is also preferably secured to the diving jacket. At least one loop is attached to the outer surface of the diving jacket to define an aperture that is dimensioned to accommodate a corresponding strap of a buoyancy compensator for allowing the buoyancy compensator to be secured to the outer surface of the diving jacket.