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Wellue Pulse Oximeter, Bluetooth Fingertip Oxygen Monitor with Pulse Rate Measure and Abnormal Reminder, Free APP, Batteries and Lanyard Included, Black, FS20F - Walmart.com
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Amazon.com: Pulse Oximeter Fingertip, Digital Blood Oxygen Saturation Monitor for Heart Rate Monitor and SpO2 Levels, Portable LCD Pulse Oximeter (Batteries Included) : Health & Household
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