To effectively avoidphysical diseases，this1.1" OLED Screen SPO2 Heart Rate Monitor Fingertip Pulse Oximeter is a must have. It is used to detect human’s pulse and the number of liquid-drop within certain time. So you should pay attention to pulse frequency， oxygen saturation (SpO2) and perfusion index (PI) well. You might as well prepare such a practical one for your daily home healthcare. Our pulse oximeter is made of high-class material with assured technology， so it guarantees excellent operation and high accuracy. What is more， it is so easy to use; just simply clip the device on your finger， and it starts to work. Effectively in detecting the heart rate， it will help you learn about your physical condition with ease!                                    Features            Support OLED displayEasy and convenient to operateReliable accuracy and durabilityLow power consumption; powered by AAA batteries， it could keep working up to 100 hoursAutomatic power off when no signal in the oximeter within certain secondsWidely used in hospital， home healthcare， oxygen bar， community medical center， alpine area， sports healthcare etc.Low voltage indicator， real-time spot-checks                                                            Specifications            Material    PVC    <br>Color    Blue !#!amp!*! Black !#!amp!*! White    <br>Display    1.1" OLED    <br>Target Position    Finger    <br>Power Supply    2 x AAA Batteries (Not Included)    <br>Dimensions    (2.36 x 1.38 x 1.18)" / (6 x 3.5 x 3)cm (L x W x H)    <br>Weight    0.99oz / 28g    <br>                                                            Package Includes            1 x Oximeter1 x Strap1 x English User Manual