Our selection of handheld blood oxygen saturation meters are affordable and an easy way to get immediate feedback regarding your blood's oxygen saturation level and pulse rate. We offer not only the best portable finger pulse oximeters, but also some of the most affordably priced units anywhere, with some priced right around $50. Oxygen saturation (SpO2) is measured in your arterial blood by simply slipping your finger into the fingertip probe and turning the unit on.
Normal readings on a pulse ox should be between 95-100 percent (at sea level), and anything below 92 percent could be reason for concern. You can buy handheld pulse oximeters for sale here, including those that are designed for short-term monitoring (spot checks) or units that can monitor your vital signs continuously throughout the day and night.
Pulse oximetry is a noninvasive method that enables rapid measurement of the oxygen saturation of hemoglobin in arterial blood. It can rapidly detect changes in oxygen saturation, thus providing an early warning of dangerous hypoxemia.
A pulse oximeter shines light at two wavelengths - red and infrared - through a part of the body that is relatively translucent and has good arterial pulsed blood flow. The ratio of red to infrared light that passes through the measurement site and is received by the oximeter’s detector depends on the percentage of oxygenated versus deoxygenated hemoglobin through which the light passes. The percentage of oxygen saturation thus calculated is referred to as the percent SpO2.
An SpO2 of greater than 95% is generally considered to be normal.
An SpO2 of 92% or less (at sea level) suggests hypoxemia.