Is it not better for physiologists & cardiologists to choose a Cyton 3 channel ECG which offers a validation paper instead of optical HRMS & not to choose intense activities with strong body movements as their research topic?

The Meditation Research Institute Switzerland (MRIS) has no grant for research, but we are looking for a low-cost high-quality medical and research grade heart rate monitor which is very accurate, validated in a high quality scientific paper and accepted by researchers and medical doctors. For people who are also looking for such a HRM, we …