An ambulatory ECG works by placing electrodes on the patient's chest that are connected to a small, portable recording device by wires. The device continuously records the heart's electrical activity through the electrodes. Modern Holter monitors are completely wireless and the electrodes transmit the Ambulatory Electrocardiography to a small recording unit worn on a waist belt or str... https://www.coherentmarketinsights.com/industry-reports/ambulatory-electrocardiography-market