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Walmart has massively marked down a highly-rated pulse oximeter that's designed to monitor your heart rate and blood oxygen ...

The last time you were in the emergency room after a horrible accident involving a PVC pressure vessel, a nurse probably clipped a device called a pulse oximeter onto one of your remaining fingers.

The Choicemmed MD300CN340 Pulse Oximeter features a dual color OLED display and shows the SpO2 levels, pulse rate, perfusion index and pulse bar. It is easy to use and accurately shows results in ...