A compact, regulator combined with a flow meter from 0.5 to 8.0 LPM to deliver gas directly from a scuba tank to an oxygen analyzer (not included) at nearly atmospheric conditions. Tank connection is 300 Bar DIN style. Includes a 6 foot piece of medical grade tubing with our barbed sensor adapter, which connects to all Global oxygen analyzer sensors. Working pressure: 4,500 psi. Delivered Oxy-clean.