SpO2 Finger Sensor: A Vital Tool for Monitoring Oxygen Levels

The SpO2 finger sensor is a non-invasive medical device that measures oxygen saturation in the blood. It is a vital tool used in healthcare settings to monitor patients’ oxygen levels. In this blog, we will explore what SpO2 finger sensors are, how they work, and their applications in healthcare.

What is a SpO2 Finger Sensor?

A SpO2 finger sensor is a small device that attaches to a patient’s fingertip to measure oxygen saturation levels in the blood. The sensor uses light waves to determine the amount of oxygen in the blood by measuring the amount of light absorbed by the blood vessels in the finger. This information is then transmitted to a monitor, where healthcare providers can assess the patient’s oxygen levels.

How Does a SpO2 Finger Sensor Work?

SpO2 finger sensors work by emitting two types of light wavelengths, one red and one infrared, through the patient’s fingertip. The oxygen-rich blood absorbs more infrared light, while the oxygen-poor blood absorbs more red light. The sensor detects the amount of light absorbed and calculates the percentage of oxygen saturation in the blood.

Applications of SpO2 Finger Sensors

SpO2 finger sensors have a wide range of applications in healthcare settings. They are commonly used in emergency departments, intensive care units, and operating rooms to monitor patients’ oxygen levels during surgery or treatment. They are also frequently used to monitor patients with respiratory conditions such as asthma, COPD, or pneumonia.


SpO2 finger sensors are a critical tool in healthcare settings for monitoring oxygen levels in patients. They are non-invasive, easy to use, and provide accurate readings. Unimed Medical is an excellent choice if you are looking for high-quality SpO2 finger sensors. Their sensors are reliable, durable, and designed to meet the needs of healthcare professionals.

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