What is a Pulse Oximeter

What is a Pulse Oximeter

A pulse oximeter is an important medical device used by healthcare professionals to measure the oxygen saturation in a patient’s blood. Monitoring levels of oxygen in a patient’s blood is a standard part of patient care and can be an important indicator if the oxygen levels in the blood drop. A drop in oxygen saturation can be often mean there is a serious issue with the circulatory or respiratory system.

Pulse Oximeters are small clip-on devices that usually attach to a patients fingertip. They are non-invasive and painless which measure the saturation of oxygen in a patient’s blood. They are generally used to give a doctor early warning signs that potential oxygen saturation levels are low and to monitor their patients more closely.

Once the pulse oximeter has been attached to the patient’s fingertip, they send two wavelengths of light into the finger, one to check the pulse rate and the other to check oxygen saturation. The whole process is quick and painless and is complete within seconds. The results are then displayed on the monitor of the device.

What does a Pulse Oximeter measure?

A Pulse Oximeter is used to take two measurements: oxygen saturation and pulse rate

The blood oxygen saturation is also referred to as SpO2. A SpO2 reading above 95% is considered normal.

A SpO2 reading below 92% is an indicator that there is not enough oxygen in the blood. If you have low blood levels it can lead to serious health issues including chest pain, shortness of breath and an increased heart rate.

Which Pulse Oximeter Should I Buy?

Vital Medical Supplies has a large range of Pulse Oximeters for sale online. We highlight below a few of our best selling devices. The devices have a display screen integrated into the body of the device are more affordable than those with separate clips and displays.

The inhealth™ Finger Pulse Oximeter measures the proportion of oxygenated haemoglobin in the blood in pulsating vessels, especially the capillaries of the finger or ear.

A portable finger pulse oximeter is ideal to use in situations where rapid oxygen saturation reading may be required. 

Oximeters featuring a pulse detection and oxygen saturation are often referred to as SpO2 meters.

inhealth™ Finger Pulse Oximeter

MESI mTABLET Pulse Oximetry Diagnostic Module connects wirelessly to MESI mTABLET which provides an intuitive user interface and advanced applications.

The Pulse Oximeter Diagnostic Module is designed for the non-invasive determination of the functional oxygen saturation in the human arterial blood (SpO2) and for measuring the pulse frequency. With the MESI SpO2MD the various applications for measuring pulse oximetry can be accessed i.e. shuttle test, 6-minute walk test and advanced pulse oximeter monitor.

MESI mTABLET Pulse Oximetry Diagnostic Module

The MD300M Hand Held Pulse Oximeter is very easy to use, yet full of features with  simple menu selection buttons. It is designed to be robust and can give you at-a-glance analysis of SpO2 and Pulse Rate, whether you need a table or instant graph review. It's portable, compact and reliable and would be perfectly suited to a clinical environment, hospital use, medical first aid departments or serious home use.

MD300M Hand-Held Pulse Oximeter


Vital Medical Supplies is Australia's largest supplier of medical supplies and equipment to the primary care market. We stock a large range of medical diagnostics. Please call our Customer Service team or your Territory Manager if you have any questions relating to any of our pulse oximeters for sale online.