Once the HeartCheck™ ECG PEN was successfully unlocked, the performance of the device was exactly what I had hoped for. With a careful reading of the instructions and some practice I obtained more than adequate results. Everyone I have shown the device is very impressed that such good results could be obtained from such a small and simple package. Just the fact that I can see for myself what is going on with my body gives me great peace of mind and relieves me of days if not weeks of anxiety from navigating the normal channels of our local health care system.
Thank you very much for a great product.
Fairbanks, Alaska
