Feature: 1. [Multifunctional]: Pulse oximeter mainly measures oxygen saturation, pulse rate and perfusion index. It is suitable for family, personal care in sports and etc. What\u0027s more, it also suits elderly people over 60 years old, people who work more than 12 hours a day. 2. [How To Use]: Turn the Pulse Oximeter on, put one of your fingers into the rubber hole of the oximeter. Then release the clamp, press the button, oximeter will go into the working state. The oximeter will automatically fall into standby or sleep mode after 8s seconds without a finger in it. 3. [Quicker Display: The oximeter adopt advanced sensing technology, the test results will be displayed on the screen after 5s. No need to wait. 4. [TFT Display]: Low power consumption, TFT clear display, 4 directions can be adjusted for conveniently reading. Even the elderly, also can accurately and easily read the values of the oximeters. Convenient and compact, portable for home or travel use. 5. [Warranty]: If there are any problems, please contact our store in time. We will give you a satisfactory solution. Specification: The oximeter can be used to measure oxygen saturation, pulse rate, and perfusion index through the finger. The product is suitable for family, personal care in sports and etc. Features: [Multifunctional]: Pulse oximeter mainly measures oxygen saturation, pulse rate, and perfusion index. It is suitable for family, personal care in sports and etc. What's more, it also suits 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 rubber hole of the oximeter. Then release the clamp, press the button, oximeter will go into the working state. The oximeter will automatically fall into standby or sleep mode after 8s seconds without a finger in it. [Quicker Display: The oximeter adopt advanced sensing technology, the test results will be displayed on the screen after 5s. No need to wait. [TFT Display]: Low power consumption, TFT clear display, 4 directions can be adjusted for conveniently reading. Even the elderly, also can accurately and easily read the values of the oximeters. Convenient and compact, portable for home or travel use. [Warranty]: If there are any problems, please contact our store in time. We will give you a satisfactory solution. Specifications: Item: Pulse Oximeter Display Type: TFT Display SpO2 Measuring Range: 70%-99% (1% Resolution) SpO2 Accuracy: ±2% on the stage of 70%-99%, meaningless on the stage of lower than 70% PR Measuring Range: 30BPM-240BPM PR Accuracy: 1 BPM Battery: 2 * AAA Battery (NOT included) Main Material: ABS Testing Results: 5S Shut off Automatically: 8S Item Size: 6*3.5*3.5cm Package Size: 10*6.3*3.7cm Package Weight: 51g Note: * Do not operate the unit if it is damp or wet because of condensation or spill. Avoid using the equipment immediately after moving it from a cold environment to a warm, humid location. * Fingernail polish or fake fingernails may cause inaccurate SpO2 readings. * SpO2 measurements may be adversely affected in the presence of high ambient light. Cover the sensor area from direct sunlight (with a towel, for example) if necessary. * There could be some deviations due to manual measurement or slight color difference owing to photographing conditions. Thank you for your understanding. Packing List: 1 * Fingertip Pulse Oximeter 1* Lanyard 1 * User Manual (English) Package List: 1 * Fingertip Pulse Oximeter 1* Lanyard 1 * User Manual (English)