Nonin N9500 Onyx Finger Pulse Oximeter

World's first self-contained digital finger pulse oximeter - incorporates the electronics and the sensor into one unit.

•  Proven accuracy and durability
• Simple automatic on/off operation
•  Does not require a sensor *
• Very small size; convenient to carry at any time *
• Easily Affordable *
• Oxygen Saturation Range 0-100% * Pulse Rate Range 18-300 BPM *
• Power Supply Two AAA Alkaline Cells *
• Battery Life Approximately 12 Hours Continuous *
• Dimensions and Weight 1.3 W x 1.3 H x 2.25 L - 1.27 ounces *
•  Intended Use Spot checking or attended-care monitoring of adult or pediatric patients with finger thickness between 0.3 and 1.0 inches *
• Comes with a Standard 2 Year Warranty! *

What is Pulse Oximetry?

Pulse oximetry measures the percentage of hemoglobin (Hb) saturated with oxygen. This oxygen saturation is a measure of how much oxygen the blood is carrying as a percentage of the maximum it could carry. Pulse oximetry is performed simply by placing a special light clip on your finger, earlobe or toe. The clip is attached to the pulse oximeter by a cable, which is connected to the pulse oximeter computerized unit. The pulse oximeter monitors the oxygen saturation in the blood.

How Does a Pulse oximeter Work?

 A pulse oximeter passes two light waves (red and infrared) through the skin to measure the amount of oxygen in your blood. The testing is non-invasive and does not cause pain, nor is it considered a "risky" procedure. Pulse oximetry can be performed at rest, during activity or even during sleep.