MASX High Accuracy Fingertip, Blood Oxygen Saturation Monitor Pulse Oximeter  (Blue)

This oximeter can measure and monitor heart rate, SpO2 and pulse intensity with high accuracy. EASY TO USE: Insert finger into rubber of the pulse oximeter and press "on". Intelligent tool for exercise recovery, elderly, hikers, climbers (monitor the oxygenation rate of cells, for overall health). Essential to take reading without moving the body or hand to obtain accurate result. LIGHT AND PORTABLE: Monitor is very light, small in size, low in power consumption and easy to carry with detachable lanyard; so, you can measure oxygen saturation anywhere. Auto power off s seconds after removing finger saves battery life. Requires two AAA batteries.