Zacurate 500C Elite Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicon Cover, Batteries and Lanyard (Mystic Black)
Accurate with Advanced Display: Measures Blood Oxygen Saturation SpO2 and Pulse Rate (PR) with professional-grade accuracy. An upgraded OLED screen features a Plethysmograph (wave plot) to visually confirm the strength and reliability of your pulse for a more confident reading.