Was it not DC Raimaker who managed to sell the Polar OH1 even to scientists? https://www.dcrainmaker.com/2019/03/polar-oh1-plus-optical-hr-sensor-in-depth-review.html Even scientists became interested in the Polar OH1, and tested the HRM with a 50 000 USD g.tec medical multi-purpose device: and wrote a paper with it: Validation of Polar OH1 optical heart rate sensor for moderate and high … Continue reading 1550: Is DC Rainmaker world champion in selling OHRMs?: – was he the one who catched the attention of scientists so that they started testing the Polar OH1 with a g.tec medical device for 50 000 USD?
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