DescriptionDescription:The  Blood Oxygen Sensor  is an affordable way to accurately measure your pulse rate(PR), and blood oxygen saturation levels(SpO2). With OLED display, it can show the testing data clearly. One-button operation, easy to use. Features:[Easy to Read]Automatic 4 display directions, you can view your result in any direction.[Widely Applicable]Suitable for everyday use. Widely used in family, hospital,social organizations, physical care in sports, etc.[Compact Size]The Blood Oxygen Sensor is lightweight and portable, and it comes with a lanyard for easy carrying.[Multi-function]Digital Blood Oxygen Sensor  can be used to measure pulse rate, blood oxygen saturation levels and perfusion index accurately.[Easy to Use]Accurate and reliable, one-button operation, just clip it on to your finger and turn it on at the press of a button. Automatic power off after 8s when not in use.Specifications:Color: RandomMaterial: PlasticScreen: OLEDPerfusion: Lower than 0.1%Accuracy: SpO2(70%-99%)+-2%   PR(30BPM-250BPM):+-1BPM or +-1%Automatically power off: After 8sPower: DC3VBattery: 2*AAA Batteries (Included)Application: FingertipOccasion: Home, Hospital, Office, Nursing HomePackage Size: 8.8*6.3*5cm / 3.46*2.48*1.96inchPackage weight: 62g / 0.13lbPacking List:1 *  Blood Oxygen Sensor 1 * Lanyard1 * User's ManualNotes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow slight dimension difference due to different manual measurement.Features• •Automatic 4 display directions, you can view your result in any direction.•Suitable for everyday use. Widely used in family, hospital,social organizations, physical care in sports, etc.•The Blood Oxygen Sensor is lightweight and portable, and it comes with a lanyard for easy carrying.•Digital Blood Oxygen Sensor  can be used to measure pulse rate, blood oxygen saturation levels and perfusion index accurately.•Accurate and reliable, one-button operation, just clip it on to your finger and turn it on at the press of a button.