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Ingrid Havierov (Ink ᠌ photo
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41 Review
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Review on Pulse oximeter on a finger Fingertip Pulse Oximeter LK87 measurement of oxygen and pulse. by Ingrid Havierov (Ink ᠌

Revainrating 1 out of 5

Ive never seen anything worse! A terrible purchase.

Turned on and off. Then he turned on again. And turned off again. I didn't manage to make a stop. I don't need this toy. I issue a refund