Instruction: 1.Insert two AAA batteries, ensuring they are placed in the correct orientation as indicated on the back of the battery compartment. 2.After inserting the batteries, press the white button to turn on the oximeter. 3.Place your finger fully into the device (not just the fingertip) to ensure proper sensor detection. 4.Wait around 5 seconds for the results to appear. This Finger Oximeter Heart Rate Monitor is a reliable and efficient tool for measuring blood oxygen levels and heart rate. Its compact design and easy-to-use interface make it ideal for use in medical settings, as well as for personal use at home.
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