How to build your own heart monitoring device, a simple ECG

I have not been writing for some time and I am sorry for it. During the summer I got a three week scholarship in Germany. I had a great time there, btw. I would like to greet those people now. Finally the exams are over and I wanted to share one of my projects with you.

Low cost ECG Tester

In the developing world, engineers do not have adequate resources to properly repair medical equipment. The development of a low cost electrocardiogram (ECG) tester would greatly enhance an engineer ability to debug problems in current ECG machines.

Homemade EEG & EKG (ECG) Schematics