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Amazon.com: LOOKEE Ox-Minder Ring Continuous Pulse Oximeter | Bluetooth & Wearable Oxygen Monitor with Vibration Reminder for Low O2 | Rechargeable Blood Oxygen Saturation SpO2 Tracker - Free APP with Reports :
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Electronics | Free Full-Text | Development of a Low-Cost Pulse Oximeter for Taking Medical-Scientific Parameters to Monitor Remote Patients
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Amazon.com: Wellue Bluetooth Pulse Oximeter Fingertip PC-60FW, Blood Oxygen Saturation Monitor with Free APP, Batteries, Carry Bag & Lanyard : Health & Household
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