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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Nonin 9550 Onyx II Finger Pulse OximeterNonin Onyx II 9550 Finger Pulse Oximeter Military Tested & Certified The Nonin Onyx II finger pulse oximeter has been tested under the most rigorous circumstances. Clinically proven oxygen saturation and pulse rate readings, the Onyx II has received the US Army and US Military Airworthiness Certifications, allowing it to be used in helicopters. FEATURES: Quick Spot Checks: The Onyx II turns on and off quickly for easy spot checks Proven Accuracy:
Nonin Onyx® II 9550 Finger Pulse Oximeter
Military Tested & Certified
The Nonin Onyx® II finger pulse oximeter has been tested under the most rigorous circumstances. Clinically proven oxygen saturation and pulse rate readings, the Onyx® II has received the US Army and US Military Airworthiness Certifications, allowing it to be used in helicopters.
FEATURES:
- Quick Spot-Checks: The Onyx® II turns on and off quickly for easy spot-checks
- Proven Accuracy: Clinically proven accuracy in the widest range of patients and settings, including patients with dark skin color and low perfusion
- Efficient: Allows for 2500 spot-checks or 21 hours of continuous use
- Large Bright LED Display: SpO2 and pulse rate can be read from any angle, day or night
- Wide Range of Finger Sizes: Accommodates a wide range of finger thicknesses, from 0.3 - 1.0 inch (8 mm to 26 mm)
- Durable and Reliable: The Onyx® II 9550 has the US Army and US Air Force aeromedical certification for use in helicopters
- LANYARD NOT INCLUDED (Available separately)
SPECIFICATIONS:
- Self-Contained: No sensors or cables to tangle or lose
- Power Source: 2 x AAA batteries
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 1070 reviews
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Product Reviews
★★★★★ 5
Great shirt for the price.
Material Type: Recycled Polyester, Color: Electric Blue, Size: Large
Bought this for my son. Very nice shirt for the price, it is true to size and the color is the same as the picture. Would definitely buy it again. The material is good quality. No issues whatsoever
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great purchase
Material Type: Recycled Polyester, Color: Dark Navy, Size: X-Large
Purchased several shirts, all were great quality. You never know what you’ll get when you purchase sight unseen, these are worth it. Great value, style, and comfort. Color is exactly what you see online. True to size.
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Reviewed in the United States on November 25, 2025
★★★★★ 4
Great quality for price
Material Type: Recycled Polyester, Color: Red Stripe, Size: XX-Large
Very impressed with the shirt quality, especially for such a low price. Sizing is accurate.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
For work or casual wear, this polo is a great choice.
Material Type: Recycled Polyester, Color: Port Stripe, Size: X-Large
I really like this polo. I've been wearing it once a week or every other week since November. Its very comfortable and breathable. This polo feels like it should last a while. The fit is good. I typcally wear XL and this XL fits great. I've pruchased it in both burgundy and black so far. I definitely recommend this shirt. For work or casual wear, this will look good.
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Reviewed in the United States on January 11, 2026
★★★★★ 5
Great value: These are my go-to work from home shirt
Material Type: Recycled Polyester, Color: Blue, Size: X-Large
I’ve been pleasantly surprised by these shirts and wear them weekly for Zoom calls, since I’m still working from home these days. I figured at the price point it was worth trying them out, and now I’ve bought several in different colors. They aren’t super soft, but they are comfy and look nice. I’m 6’1” ~220 pounds, and the XL slim fit still has plenty of room. I imagine the regular cut is incredibly boxy and oversized. The difference between polyester vs recycled polyester is inconsequential.
I typically buy expensive golf shirts, and these definitely aren’t as nice. They are a fraction of the cost though and a great “beater” work shirt / hang out shirt. It’s nice wearing something that looks and feels decent, but if something happens to it, you can toss and it and pick up another for the cost of a chipotle burrito.
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Reviewed in the United States on May 29, 2022