Onyx® Vantage 9590

Fingertip Pulse Oximeter

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Onyx® Vantage 9590

Fingertip Pulse Oximeter

The Nonin Onyx Vantage 9590 Finger Pulse Oximeter is a small, lightweight, portable device indicated for use in measuring and displaying functional oxygen saturation of arterial hemoglobin (%SpO2) and pulse rate of patients who are well or poorly perfused.

It is intended for spot-checking of adult and pediatric patients on digits (fingers, thumb, toes) in a wide-range of environments to include hospitals, clinics, long-term care facilities, skilled nursing facilities, emergency medical services, and home healthcare services.


Reliable Performance

Delivers accurate measurements for all skin pigmentations and even for patients with low perfusion


Exclusive Features

Nonin PureSAT® technology captures SpO2 and pulse rate measurements quickly and accurately


Lasting Value

Provides up to 6,000 spot checks on two AAA batteries and includes a 4-year warranty

PureSAT® Technology

Exclusive, patented Nonin technology uses intelligent pulse-by-pulse filtering to provide accurate measurements for all skin pigmentations and patients with low perfusion

Easy to Read

Clinician-facing, bright LED allows SpO2 and pulse rate readings from any angle, in all lighting conditions, day or night

Pulse Quality Indicator

Three-color pulse quality indicator LED provides quick assessment of patient pulse quality

Wide Fit Range

Fits pediatric to adult patients; accommodates fingers, thumbs, or toes from 8 mm to 25.4 mm (0.3 to 1.0 in.)

Automatic Switching

Power turns on when applied and off when removed

Long Battery Life

Provides up to 6,000 spot checks on (2) AAA batteries

Durable Construction

Withstands a minimum of 50 drops and exceeds IP32 water ingress testing requirements

Portable and Compact

Weighs less than two ounces and can be taken anywhere


Includes lanyard, instructions on CD, and two AAA batteries; optional carrying case and retractable lanyard available

Three Colors

Available in black, blue, or red

Onyx Vantage Keeps Working
in Extreme Conditions

Onyx Vantage is tough enough to withstand a minimum of 50 drops, is rugged enough to be used in the most demanding situations.

Nonin PureSAT® Technology
for Reliable Measurements

The Nonin Onyx® Vantage 9590 fingertip pulse oximeter provides fast, accurate, cost-effective spot checking of oxygen saturation and pulse rate in pediatric to adult patients. It uses Nonin PureSAT® technology to deliver consistent measurements even under demanding conditions. PureSAT® automatically adjusts to each patient's condition to provide fast and reliable readings.

Lab and Field Tested
for Proven Performance

Onyx is the only brand of finger pulse oximeter with accuracy and performance claims that are supported by published peer-reviewed, clinical studies. Medical professionals around the world trust Nonin for patient information that helps them make confident decisions quickly.


  • Description


  • Carrying Case


  • Fingertip Lanyard


  • Fingertip Retractable Lanyard


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