Have the heart rate monitor received yesterday and I endorse the positive reviews in terms of function and design at. I would like to add just the report by Manfred Roux in terms of the pulse sensor in the chest with the following information: He writes (in accordance with the Operating Instructions, which ribbed sensors on the inside of the chest strap is mentioned), the inside of the chest strap is not as other manufacturers designed flat and therefore there would be problems with the pulse measurement. The chest strap my Beurer PM 62 is contrary to these data plan. Beurer has so obviously changed the Konstrunktion the chest belt, the measurement of the pulse works with this flat chest strap (with me) perfectly.