If the oxygen level in the blood is too low, vital organs like the brain and heart may fail to function normally. Monitor the oxygen level in your blood on a regular basis with this Pulse Oximeter from ChoiceMMed. Non-Invasive Method The innovative non-invasive technology provides painless measurement and produces instant, accurate results. One-Touch Operation Place your fingertip in the slot provided on the side and get instant readings of the percentage of oxygen in the blood and pulse rate at the touch of a button. The measurements are displayed on the bright and clear OLED display. Versatile Use This pulse oximeter can be used for both kids and adults. Fingertip Pulse Oximeter (MD300C2D) now measuring your pulse rate and oxygen levels in the body becomes easy. All you need is a few seconds and you can check these levels anytime, anywhere. Now you don't need trips to the doctor everyday if you are recovering from a surgery and have to measure your oxygen levels several times a day.FDA Approved