The fingertip pulse oximeter is designed to easily measure oxygen saturation and pulse rate at home without going to any clinic or hospital.Product description 1. Finger oximeter is suitable for all ages, from children to adults and the elderly. The device helps to measure health data. 2. The cover can protect your pulse oximeter from dust and physical damage, making it easy to use. 3. It is suitable for sports enthusiasts, such as climbers, skiers, cyclists or anyone who is interested in measuring blood oxygen saturation and pulse rate.Product attribute Battery:3V, 2xAAA (not included) SPO2 Measuring Range:35-100% (the resolution is 1%) Power Consumption:Smaller than 30mA Screen Orientation:2 Directions Adjustable EMC: Type B class 1 Color:White,Blue,BlackWarm reminder 1. Please remember that due to the lighting effects, the monitor's brightness / contrast settings / etc's, there will be some slight differences in the color of the pictures and the actual items. Measured by hand, deviations of 1-2 cm are possible. 2. Please leave us a message if you have any questions. We will respond and offer you our best service.