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RE: Polar OH1 - Optical Heart Rate Monitor armband-Ditch the Chest Strap

in #steemhunt6 years ago

A vital sign monitor consists of 2 components - a transmitter connected to a belt worn round the chest, and a receiver worn on the wrist joint sort of a watch. because the heart beats, Associate in Nursing electrical signal is transmitted through the center muscle so as for it to contract.