Dual Master & Slave O2 Controllers with independent & intelligent power supplies.

APD CCRs are the only rebreathers with two independent oxygen controllers (patented). The Vision inherits this unique feature from the Inspiration Classic displaying both controllers’ readings of all 3 cells on the wristset. The Slave readings are hidden but can be simply called up and displayed for comparison with the Master readings (which never leave the display). The readings are in real time, that is, they change instantaneously, as PO2 variations occur, so that you see exactly what is happening with your oxygen pressure and with each cells’ performance (enabling you to easily spot an errant cell).