Finger pulse oximeter is an economical and accurate method to detect pulse rate and blood oxygen saturation by finger. The self-adjusting finger clip design is convenient for operation. Small size, easy to carry. Suitable for daily use, measuring your health at any time Just put your finger on the machine, press the operation button, and wait. After a few seconds, you will know the SpO2 level and pulse rate accurately. The operation is simple and one-button start. Get rid of tedious operation steps. Small portable pulse oximeter, widely used in home health care, offices, community centers, high mountain areas, sports health care and other places.