Professional Finger Pulse Oximeter Blood Oxygen Saturation Heart Rate Monitor Heaters not flying

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Short press the power button to switch between the two modes of EMS: the default is to enter the slow frequency mode after power on

door and bedside

high-lumen

Professional Finger Pulse Oximeter Blood Oxygen Saturation Heart Rate Monitor Heaters not flyingProfessional 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