The ECG Holter is used to record patient’s multi-channel ECG and to measure the time intervals between consecutive R peaks in the ECG, for the diagnosis of symptomatic and asymptomatic arrhythmias, i.e. bradycardia or tachycardia, and for patients after resuscitation or suffering from diseases such as cardiomyopathy, high blood pressure or long QT syndrome. Holter recordings are used for the diagnostics of – symptomatic and asymptomatic arrhythmias. – arrhythmias in patients with coronary artery diseases – patients with diseases like cardiomyopathy, high blood pressure, long QT, etc. Holter recordings are used for the diagnostics of – symptomatic and asymptomatic arrhythmias. – arrhythmias in patients with coronary artery diseases – patients with diseases like cardiomyopathy, high blood pressure, long QT, etc.