A fingertip pulse oximeter is a small, portable medical device that clips onto your finger to measure your blood oxygen saturation (SpO2) and pulse rate painlessly.
How It Works & Normal Readings
• Oxygen Saturation (SpO2): Normal levels for healthy individuals typically range from 95% to 100%. Levels below 95% can indicate lower oxygen, and readings below 90% are a sign of potential hypoxia requiring medical attention.
• Pulse Rate (PR): Displays your heart rate in beats per minute (usually 60–100 bpm at rest).
• Light Absorption: The device shines red and infrared light through your finger to calculate how much oxygen your red blood cells are carrying.
Tips for an Accurate Reading
• Warm and Relaxed: Ensure your hand is warm, relaxed, and resting below heart level.