This little device is one of today’s greatest easy to use at home, life saving devices. Life saving because of its accuracy to detect abnormal heart rhythm. I felt there was something about my heart rhythm that was concerning enough that I bought this device. Concerned with what it had detected I scheduled a appointment with a cardiologist. First thing I asked the Dr. was “did I waist my money”. He knew the device and highly recommended it. Three months later I had a heart ablation, due to PVC,s which was consistent with what the KardiMobile 6L was detecting. Grateful customer.