Place the device on a finger, toe, or earlobe
Wait until the reading stabilizes
Read the SpO2 value for oxygen saturation
Read the pulse rate value for heart rate
Check that the pulse waveform or pulse indicator is steady
Ensure the finger is warm and still for an accurate reading
Remove nail polish or artificial nails if readings seem inaccurate
Compare the reading with the normal range provided by a clinician
Seek medical advice if oxygen saturation is consistently low or symptoms are present