J&J ENGINEERING: Your Source for Applied Neuropsychophysiology. Clinical Biofeedback . Neurofeedback . Hardware and Software
This belt has a stretch-band near the buckle. At one end is a magnet. The other end has a magetometer, a magnatic field sensor. As the band stretches the field weakens. This band is so sensitive, it is possible to pick up chest pulsing from strong heart beats in some individuals. Easy snap-on buckle and adjustable belt clip for maximum flexibility.