?Sports Enthusiasts?: For sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SpO2 and Pulse Rate now faces instead of away from the user for an easy read. When the finger oxygen monitor measures your pulse rate and SpO2 level, you must remain still. ?Low power consumption?: The oxygen finger monitor will automatically switch off when finger is removed from the unit for more than 10 seconds. Great for saving the battery life. Equipped with 2AAA batteries include in the packag. So you could immediately use oxygen meter when you received package. ?Reading Accurately?: Oxygen finger monitor can accurately determine your SpO2 level (blood oxygen saturation), pulse frequency and pulse strength within 5 seconds. SpO2 oxygen meter with large OLED screen is very easy to read. Please note that there is a protective film on the screen, you can tear off the protective film before use to better see the screen Numerical value!. ?Lightweight and portable?: Pulse oximeter only 54 grams(Include battery), is very easy to carry. It also comes with a detachable lanyard, You can hang it on your neck or backpack. SO, you can measure your blood oxygen level and heart rate anytime, anywhere. Monitor your health everytime and everywhere. ?Simple One-Button Operation?: Fingertip pulse oximeter use simple one-button operation, simple and convenient. Users just need to put one of his fingers into the fingertip photoelectric sensor, Press the button for diagnosis. Then the screen will directly show the Spo2 result clearly. Is very easy to use.