The recordings of your respiration (breathing) patterns, as well as other related activity are accomplished using two strain gauges, one across the chest and the other across the abdomen (stomach). The ability of your skin to conduct electricity is recorded by placing two electrodes on the fingers or using electrode pads on your palm. Cardio Vascular (heart) activity is recorded using a standard blood pressure cuff placed on the upper arm, forearm or calf.

All polygraph examinations must be audio-visually recorded for the safety of examinees, as well as for quality control purposes.