O2 Ring Continuous Oxygen Monitor Please apply coupling gel to

Please apply coupling gel to the probe faceplate

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O2 Ring Continuous Oxygen Monitor Please apply coupling gel toTrack Your Oxygen Level Every Second Wearing the ring, it will automatically start to track your overnight blood oxygen saturation, heart rate and body movement continuously. Real Time Data Management Built in memory, works stand alone, your information is always a quick glance away with a larger display. O2ring stores 4 groups of 10 hour data. When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.