The Pulse Oximeter Blood Oxygen SpO2 Saturation Monitor by Pulse is a digital finger oximeter that uses infrared sensor technology to measure blood oxygen saturation levels. It is powered by batteries and is FDA 510K compliant, making it a reliable and accurate device for monitoring oxygen levels in the blood. This monitor is ideal for individuals who require regular monitoring of their oxygen saturation levels, such as those with respiratory conditions or those receiving medical treatment that affects oxygen levels. Does not include batteries.