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Blood Oxygen Saturation Monitor, NHS Approved Uk Bluetooth Pulse Oximeter Fingertip Sp02 and Heart Rate Level Monitor OLED Display with Free App for iPhone & Android (Batteries Included) : Amazon.co.uk: Health &
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Fingertip Pulse Oximeter, Blood Oxygen Monitor Finger For Adults & Children, Heart Rate Monitor Fingertip and sp02 Oxygen Meter, with Large OLED Display Included Batteries and Lanyard : Amazon.co.uk: Health & Personal
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