Dr. Evan Matthews, associate professor for exercise science and physical education at the Montclair State University, New Jersey shows us this in the following demonstration: The GE Case System is sold by GE Healthcare Chicago, USA https://www.gehealthcare.com/products/diagnostic-ecg/stress—exercise-testing/case-cardiac-assessment-system-for-exercise-testing The following picture shows a GE Case System: A device which is built from electronic components as for …