O2 Ring Pulse Oximeter with Alarm, Blood Oxygen Saturation Monitor with Bluetooth, Heart Rate Monitor, Continuously Tracking SpO2 and Heart Rate, Free App and PC Report, Rechargeable : Amazon.co.uk: Health & Personal
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ViATOM Pulse Oximeter with WiFi Linker for Continuous Monitoring, spo2 Pulse Oximeter Sharing Real Time O2 and Heart Rate Data for Family/Clinic,Bluetooth Oxygen Saturation Monitor with Alarm : Amazon.co.uk: Health & Personal