1.0" OLED Screen Fingertip Pulse Oximeter SpO2 Blood Oxygen Saturate Heart Rate Monitor is commonly 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!