Featuresﾣﾺ[Multi-functional]: Pulse oximeter mainly measure oxygen saturation and pulse rate. It is suitable for family, personal care in sports and etc. What’s more, it also suits for elderly people over 60 years old, people who work more than 12 hours a day.[How To Use]: Turn the Pulse Oximeter on, put one of your fingers into the soft hole of the oximeter. Then release the clamp, press the button, oximeter will go into the working state.[Quicker Display]: The oximeter adopt advanced sensing technology, the test results will be displayed on the screen quickly. No need to wait.[OLED Display]: High brightness, low power consumption, high-brightness display, even for the elderly, also can accurately and easily read the values of the oximeters. Convenient and compact, can take care of your health at any time.[Warranty]: If there are any problems, please contact our store in time. We will give you a satisfactory solution.