SKU: 802329963

Nonin Onyx II 9550 Finger Pulse Oximeter

Sale price$199.84 Regular price$222.04
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

Nonin Onyx II 9550 Finger Pulse OximeterProduct overview Finger pulse oximeter with easy to read LED display Automatic on off switch Delivers precise measurement results Small and light ideal for mobile use Up to 2,500 measurements with one battery Onyx II 9550 Finger Pulse Oximeter The new Nonin Onyx II pulse oximeter for quick and mobile monitoring of oxygen saturation and simultaneous pulse monitoring. The Onyx II features an easily readable LED display, and the electronics and the

Product overview
  • Finger pulse oximeter with easy-to-read LED display
  • Automatic on/off switch
  • Delivers precise measurement results
  • Small and light - ideal for mobile use
  • Up to 2,500 measurements with one battery

Onyx II 9550 Finger Pulse Oximeter

The new Nonin Onyx II pulse oximeter – for quick and mobile monitoring of oxygen saturation and simultaneous pulse monitoring. The Onyx II features an easily readable LED display, and the electronics and the sensor are enclosed in the device itself, so that no wiring to the patient is necessary. The Nonin pulse oximeter is powered by two AAA batteries, which allows approx. 2,500 readings to be taken (45 seconds each) or 21 hours of continuous operation.

 

Product Details

  • World's smallest finger pulse oximeter
  • Up to 2,500 measurements without changing the battery
  • Improved design and LED display
  • Even smaller and lighter
  • Automatic on/off for fast and simple readings on the spot
  • Precise measurement
  • Can be adapted to different finger sizes (8 mm to 26 mm)
  • Dimensions: 3.3 x 3.2 x 5.6 cm (H x W x D)
  • Weight: 53 g with batteries
  • With US Army and US Air Force aeromedical certification
  • Colour: black
  • 4-year guarantee

 

Delivery Contents

  • Measuring unit
  • Carrying strap
  • Protective pouch with belt clip
  • 2x AAA batteries
  • Operating instructions (CD or via QR code)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 802329963

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DLynn
Waukegan, US
★★★★★ 5
My Husband’s Favorite Socks
Size: Large, Color: (035) Steel / White / Black
The Under Armour Unisex Training Cotton No Show Socks have become my husband’s absolute favorite socks—and he’s pretty picky about socks. Comfortable Fit: They’re soft, comfortable, and fit well without being too tight. They stay in place all day with no slipping or bunching. Great for Everyday Wear: Perfect for workouts, walking, and everyday use. They provide just the right amount of cushioning without feeling bulky. Durable & Long-Lasting: These hold up really well through regular wear and washing. They keep their shape and don’t wear thin quickly. Reliable Under Armour Quality: You can tell they’re well made. Consistent quality that matches what you expect from Under Armour. Overall Impression: When someone has a favorite sock and keeps reaching for it, that says everything. These are comfortable, durable, and dependable.
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Reviewed in the United States on December 30, 2025
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Kendall King
Carnegie, US
★★★★★ 5
Quality Under Armour socks
Size: Large, Color: (100) White / White / Black
Nice medium thick sock that is breathable but cushioned. It stays put in the show and doesn’t fall down. Fit is true to size, no show/minimal show
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Reviewed in the United States on May 2, 2026
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Jessica Beste
West Palm Beach, US
★★★★★ 5
Perfect Pairs
Size: Large, Color: (100) White / White / Black
Very comfortable, soft & affordable..
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Reviewed in the United States on May 19, 2026
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ajn
Grantham, US
★★★★★ 5
Excellent athletic socks
Size: Large, Color: (100) White / White / Black
Solid athletic socks at a great price. Not too thick, not too thin. Second time I've purchased them. They last longer than most socks I've used in the past too. Only concern is the sizing. I may be reading the sizing chart wrong, but for my size 13 feet it says XL are the correct sock size. I've ordered Large twice and they're perfect. I would imagine the size Large socks would also fit up to size 14 shoe, but probably need to go with XL if foot is lager than 14.
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Reviewed in the United States on April 12, 2026
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Kevin March
Chelsea, US
★★★★★ 4
Great product
Size: Large, Color: (035) Steel / White / Black
Comfortable fit perfect
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Reviewed in the United States on March 15, 2026

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