By Nonin

Nonin Onyx II 9550 Finger Pulse Oximeter with Justice Mark II Hard Case

Regular price £343.49 GBP ex. VAT
£412.18 GBP inc. VAT
Regular price Sale price £343.49 GBP
Taxes and Shipping calculated at checkout.
Nonin logo
Brand: Nonin
Availability: In stock
SKU: 9550J
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Regular price £343.49 GBP ex. VAT
£412.18 GBP inc. VAT
Regular price Sale price £343.49 GBP

The Nonin 9550 Onyx II is a professional-grade finger pulse oximeter trusted by paramedics, military medics and hospital clinicians worldwide. Delivering clinically validated SpO2 and pulse rate readings across a broad range of patient conditions, including low perfusion and darker skin tones, the Onyx II sets the standard for portable pulse oximetry accuracy. Certified by the US Army and US Air Force for aeromedical use, it is built to perform in the most demanding environments.

Key Features

  • PureSAT SpO2 Technology: Nonin's proprietary algorithm provides accurate readings during motion, low perfusion and across all skin pigmentations, validated to +/-2% accuracy.
  • 2,500 Spot Checks Per Battery Set: Delivers up to 2,500 individual readings or 21 hours of continuous monitoring from two AAA batteries, ideal for high-volume clinical use.
  • Wide Finger Compatibility: Accommodates finger widths from 8mm to 26mm, covering paediatric through to large adult fingers in a single device.
  • Bright LED Display: High-visibility SpO2 and pulse rate readout visible from any angle in daylight or darkened environments.
  • Auto On/Off: Activates automatically when a finger is inserted and powers down when removed, eliminating wasted battery life.
  • Military-Grade Durability: Drop-tested and certified for aeromedical helicopter use by the US Army and Air Force. Supplied with carry case and lanyard.

Applications

  • A&E departments and acute hospital wards
  • Ambulance services and pre-hospital care
  • GP surgeries and community nursing teams
  • Military and aeromedical operations
  • Sports medicine and altitude monitoring

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