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Amazon.com: HealthTree Bluetooth Pulse Oximeter Fingertip, Blood Oxygen Saturation Monitor and Heart Rate Monitor with Free APP, for Apple and Android, 2 X AAA Batteries, Lanyard : Health & Household
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Amazon.com: EMAY Sleep Oxygen Saturation Monitor | Records Oxygen & Heart Rate Continuously | Provides Granular Data, Overnight Report and CSV File | Comes with iOS/Android App : Health & Household
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Amazon.com: Mibest Bluetooth Pulse Oximeter - Blood Oxygen Saturation Monitor with App - SpO2, Pulse Rate, Respiration Rate, Plethysmograph and PI - Compatible with iOS & Android Smartphones - Free App : Health & Household
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Wellue Pulse Oximeter, Bluetooth Oxygen Finger Monitor and Fingertip Pulse Rate Measure with Free App, Carry Case and Lanyard, PC60FW - Walmart.com
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