The AI6 Arterial Inflow System is an integrated system that will perform venous occlusion plethysmography just the way you want it. You no longer need to manually control the instruments. It provides an integrated capability for acquiring two channels of SPG inflow data, an invasive monitor and triggering of automatic inflate/deflate cycles with the capacity for an infinite number of readings to be taken and analyzed. Standard measurements of arterial inflow with and without reactive hyperemia are included. You only need to choose the time for measurements and the frequency with which they should be made. Separate measurement stages (with pauses between stages), and programmable cuff inflation and deflation times are included.