Military Certified
Reliable and durable in demanding environments; only oximeter with U.S. Army and U.S. Air Force airworthiness certifications
Proven Reliability
Provides fast, accurate SpO2 and pulse rate measurements in a wide range of patients
Energy Efficient
Provides approximately 2,500 spot-checks based on 21 hours of operation using (2) AAA-size alkaline batteries
Unmatched Accuracy
Clinically proven accuracy for all skin pigmentations and even for patients with low perfusion
Large LED Display
SpO2 and pulse rate measurements can be read from any angle, day or night
Pulse Quality Indicator
Bright, easy-to-see LED provides a quick and accurate assessment of patient readings
Wide Fit Range
Fits pediatric to adult patients; accommodates a wide range of finger thicknesses, 8 to 26 mm (0.3 to 1.0 in.)
Small and Light
Can be carried anywhere—on a lanyard, in a carrying case, or in a pocket; weighs less than 2 ounces
Energy Efficient
Power saving feature allows (2) AAA batteries to provide approximately 2,500 spot-checks or 21 hours of continuous operation
Trusted Reliability
used by the U.S. Armed Forces
The Onyx® II 9550 is reliable and durable in the most demanding environments and has U.S. Army and U.S. Air Force airworthiness certifications.
Advanced Technology
in a Compact Device
The Onyx II 9550 combines Nonin advanced pulse oximeter technology and compact design. It can be carried anywhere for spot-checks and short-term monitoring.