Professional Finger Pulse Oximeter Blood Oxygen Saturation Heart Rate Monitor Heaters -Memory: 8GB up to 128G

-Memory: 8GB  up to 128G supported (SD card not included)

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Professional Finger Pulse Oximeter Blood Oxygen Saturation Heart Rate Monitor Heaters -Memory: 8GB up to 128GProfessional Finger Pulse Oximeter Blood Oxygen Saturation Heart Rate Monitor About this item 1. Easy to use: pulse rate value display, bar graph display small size, light weight, easy to carry. 2. Fine workmanship: Designed for spot check of blood oxygen saturation and pulse rate. Simple operation makes it can be opened and closed by touching the button. 3. Accurate measurement: Accurately determine your blood oxygen saturation value, pulse frequency