Nonin 9550 Onyx II  Finger Pulse Oximeter (with soft case)

images for illustration purposes only

Nonin 9550 Onyx II Finger Pulse Oximeter (with soft case)

197.0000 GBP Available online

Code: MD03359

£197.00 Excl. VAT £236.40 Incl. VAT


  • Easy to Use - Unique Patented Auto ON / OFF when finger is inserted
  • Unparalleled Reliability & Accuracy - Now With Even Faster Response Times!
  • Hassle Free - No routine maintenance or recalibration required
  • Ergonomic - Fits the Widest Range of Fingers from child to large adult
  • Unique Pulse Quality Indicator - Larger Brighter Display - Green is GO
  • Cost Effective - Self-contained unit means there are no sensors or cables to go wrong
  • Convenient - Compact enough to carry at all times and weighs only 60g
  • Energy Efficient - Now with improved 5000 (15s) spot checks from two AAA batteries
  • Clear LED Display - Larger LEDs - Can be read in any environment from any angle
  • Extremely Robust - Military Field-tested for durability in the most toughest of environments
  • Always Ready For Use - Has a Battery Shelf Life of 4 years!
  • AAA Batteries - Uses AAA’s & Super Fast, Tool Free Battery Change
  • Low Perfusion Accuracy - PureSAT Technology Offers Amazing Performance
  • 3 Years Warranty - with the Option of an Additional two Years available
  • Fully Serviceable and Repairable - Even after expiry of 2 Year Warranty
  • ISO 9919:2005 Compliant - All Nonin Oximeters Are Tested to Comply With New International Standard for Pulse Oximeters

  • Data Sheets

    Ask A Question


    Ask a Question

    • Is the Nonin 9550 Onyx II Finger Pulse Oximeter tested to work on little infants fingers?

      Thank you for your question. The Nonin 9550 onyx accommodate a finger thickness of 8mm to 26mm (0.3inch to 1.0inch). 

      How helpful was this?

    Delivery and Returns

        • Free delivery on orders over £75 (UK only)
        • £4.99 for orders under £75
        • £6.99 for Next Working day delivery
        • £10.99 for Next working day before 10:30am
        • All prices are Excl VAT.

        • Orders Placed on Monday to Thursday before 3pm will be dispatched the same day (if all items are in stock)
        • Orders placed on Fridays before 12pm will be dispatched the same day (if all items are in stock)
        • All the above excludes Bank Holidays
        • We can deliver Worldwide
        • International deliveries can take longer than the standard 2-5 working days
        • P&P charges may change. We will contact you before applying these changes and confirming your order
        • It is the customer’s responsibility to confirm specific custom requirements for their country. MidMeds will accept no responsibility for customs refusal and all charges will be passed on to the client.
        • 30 Day money back guarantee, as long as the products are in their original condition (This excludes Furniture, Special orders and Pharmaceuticals)
        • You will receive a full refund minus postage and a 3% credit transaction charge if you paid by credit card

    For more information click here

    • Free Delivery

      On orders over £75 exc VAT

    • 1 to 5 Day Delivery

      Next day delivery optional

    • International Delivery

      Options are at checkout

    • Save with MidMeds

      We will aim to beat any lower price found elsewhere, simply complete our Price Beat form

      Your Details

      Product Details

      * Required Fields

    • Buying in larger quantities?

      Phone for a quote:
      0845 003 4212

    • Payment and Security

    Customers Who Bought This Item Also Bought