Pulse oximeter is a small, portable device that measures the oxygen saturation level in your blood, as well as your heart rate. It does this by shining light through your skin, detecting the amount of oxygen in your blood based on the way the light passes through. Pulse oximeters are commonly used to monitor respiratory and cardiovascular health, providing quick and non-invasive insights into your oxygen levels. we have many varites of pulse oximeter you can check on.BUY@ JEEV CARE