Zacurate 500DL Pro Series Fingertip Pulse Oximeter - The Zacurate 500DL Oximeter measures SpO2, pulse strength, and pulse rate in less than 10 seconds. It also benefits from a 40-hour battery life, and over 3,500 highly rated reviews on Amazon.
Accurately monitoring your blood oxygen levels using pulse oximetry can be useful for a range of physical activities, such as hiking or cycling.
