Amazon.com: Pulse oximeter fingertip with Plethysmograph and Perfusion Index, Portable Blood Oxygen Saturation Monitor for Heart Rate and SpO2 Level, O2 Monitor Finger for Oxygen,Pulse Ox,Oxi, (White) : Health & Household
Amazon.com: iProven Pulse Oximeter with Heart Rate Monitor on Fingertip, Oxygen Saturation Oximeter, Includes Batteries, Case and Lanyard, OXI-27White : Health & Household