Symptoms such as heart pain, palpitations and shortness of breath may be transient and can be difficult to record by conventional devices. With the OMRON® Portable ECG Monitor HCG-801, a recording of about 30 seconds can be made when symptoms occur whether at home or away. These recordings can then be shown to the doctor, who can examine and use the information to assist in correct diagnosis of symptoms.

For more detail: http://www.omronhealthcare.com/products/portable-ecg-monitor/