Lightweight for carrying and Easy-To-Use Pulse Oximeter The Pulse Oximeter, based on all digital technology, is intended for noninvasive spot-check measurement of functional oxygen saturation of arterial hemoglobin (SpO2). Advanced DSP algorithm can diminish the influence of motion artifact and improve measurement accuracy of low perfusion. The Oximeter can be used to measure human Hemoglobin Saturation and heart rate through finger. The product is suitable for family, hospital (including clinical use in internist/surgery, pediatrics, etc.), Oxygen Bar, social medical organizations, physical care in sports and etc. FEATURES AND BENEFITSIdeal for use in multiple applications; hospital, nursing home, community medical treatment, home care, sports center, etc.Portable non-invasive spot check oxygen saturation and heart rate.Displays digital SpO2 and pulse rate while using bar graph technology to monitor heart rate.Automatic power off.Manually adjust the direction of interface.Two AAA batteries included.Low-Battery voltage indicator.Automatically standby or sleep.1 Year limited warranty.