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74 Review
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Review on Pulse oximeter on a finger Fingertip Pulse Oximeter LK87 measurement of oxygen and pulse. by Felicja Sikora ᠌

Revainrating 5 out of 5

Reliable purchase, guaranteed to be a good purchase.

A good heart rate monitor, I don’t know why there is so much resentment, I turned it on, everything works, I immediately changed the batteries to good ones, I’ve been using it for a couple of months now, there are no glitches