Prism 2 Tec Scuba diving mask Each HUD provides a status

Each HUD provides a status indicator for its corresponding O2 sensor by using a “Smithers Code” flashing the status on a cycling 5-second loop during the dive

Quick-Release Snorkel Keeper with 30° Rotation

switchable during a dive

Remains Practically Desert-Dry

3/8" Threaded Low-Pressure QD Hose

Prism 2 Tec Scuba diving mask Each HUD provides a statusThis products Overview The PRISM 2 is an electronically or manually controlled, constant PO2, modular, closed circuit diving system. As open circuit (SCUBA) divers we rely upon filling our lungs with air from a pressurized gas tank with every inhalation and then exhausting that volume of air into the surrounding water with every exhalation. As we descend deeper the water pressure around us increases and the volume required to fill our lungs increases;