Hundreds of thousands of people trust Onyx, the first self-contained digital fingertip pulse oximeter. Incorporating the electronics and sensor into one unit – the easy-to-use Onyx provides a ...

Pulse oximeters clamp onto a fingertip and send light beams through the finger to estimate pulse rate as well oxygen levels of the blood. A sensor on the other side of the device receives those ...

To use a pulse oximeter, you'll clip the device on your toe, finger, or earlobe — here's to use it properly so you can get an accurate reading. Visit Insider's Health Reference library for more ...

A pulse oximeter measures the blood oxygen level of a subject who puts a finger inside the device and is among the well-known medical technologies developed in Japan, along with gastroscopes.