Vital Signs Within Reach™
All-In-One Fingertip Pulse Oximeter
Nonin Medical, the inventor and world leader in fingertip oximetry, has designed years of clinical experience into the Onyx® II 9550. The electronics and sensor are incorporated into the world's smallest fingertip oximeter, providing a proven and cost-effective solution for spot-checks and short-term monitoring.
Onyx II 9550 — not just a new look. Superior performance and unparalleled reliability put vital signs within reach anywhere, anytime.
U.S. Military Airworthiness Certifications: Required Testing
Product Highlights:
- SimpleAutomatically turns on for fast, easy spot-checks
- Superior AccuracyTrusted by clinicians worldwide
- EfficientAllows for 2500 spot-checks or 21 hours of continuous use
- VersatileAccommodates finger sizes from pediatric to adult
- Enhanced DesignSmaller
Enclosed spring
Wider LED viewing angle
Easy battery access
Vital Signs Within Reach
The Onyx II 9550 is ideal for use in any situation where a fast and accurate reading of blood oxygen saturation and pulse rate is needed. Never search for a pulse oximeter or sensor again. The portability and functionality of the Onyx II 9550 makes it a valuable tool in any situation where a fast and accurate reading of blood oxygen saturation and pulse rate is needed.
Proven Performance:
- Small & Lightweight Take the Onyx II 9550 anywhere: on a lanyard, in a carrying case or in your pocket/purse. It weighs less than 2 oz.
- Large Bright LED Display SpO2 and Pulse Rate can be read from any angle, day or night.
- Pulse Quality Indicator Brilliant, easy-to-see LED provides a quick and accurate assessment of patient readings.
- Pediatric to Adult Finger SizesAccommodates a wide range of finger thicknesses,
0.3 - 1.0 inch (8 mm to 26 mm).
- Automatic On/Off
- Energy EfficientA new turn-off mechanism allows two AAA batteries to provide approximately 2500 spot-checks or 21 hours of continuous operation.
- Durable & ReliableRugged enough to be used in the most demanding situations. The Onyx II 9550 has the US Army and US Air Force aeromedical certification for use in helicopters.
White Paper
Pulse Oximetry at Home
Onyx® in the Hospital Setting: a Six Month Study
Onyx in the Long-Term Care Facility: Patient Care is Enhanced with Addition of Pulse Oximetry to Routine Vital Signs Monitoring
Onyx in the Physician's Office: Patient Care is Enhanced with Addition of Pulse Oximetry to Routine Vital Signs Monitoring
Tech Bulletin
SpO2 Accuracy of PureSAT Signal Processing Technology
Spec Sheet
9550 Spec Sheet
Reference
Onyx Cost Justification Savings Calculator
EC Certificate
Onyx II Flash Presentation (1.82 MB)
Clinical Study
Santa Barbara Cottage Hospital Onyx II Study: Nonin’s Onyx II Fingertip Pulse Oximeter in the Emergency Department Results in Decreased Costs, Enhanced Patient Care and Time Savings -Denise McDonald, BSN, CEN, MSNc, Clinical Manager Emergency & Trauma Services Santa Barbara Cottage Hospital
Abstract
Think all fingertip oximeters are created equal?
Misc
- 9550L-B - Lanyard Cord with Lock - Black - Package of 30

Cases
- 9500CC-BC - Carrying Case – Black, Clip

- 9500CC-YL - Carrying Case – Yellow, Belt Loop

- JM2-CC - Justice Mark 2 Protective Case

- 9550CC-BC - Onyx II Custom Carrying Case – Black, Clip

Documentation
- 9550INS - Instruction CD-ROM–Onyx II Pulse Oximeter