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Nonin
Nonin TruO2 OTC Pulse Oximeter Model 3250 FDA-Cleared, Over-The-Counter Medical Grade Wireless Fingertip Pulse Oximeter
4.2
Based on 29 reviewsReal-World Testing
30 days of real-world testing
Recently Updated
Updated Nov 17, 2025
Technical Specifications
Complete product details
- Brand
- Nonin
- Material
- Plastic
- Color
- Black
- Compatible Devices
- Smartphones
- Product Dimensions
- 1.25"L x 1.75"W x 2.5"H
- Sensor Type
- Optical
- Battery Description
- Alkaline
- Global Trade Identification Number
- 00849686050653
- Manufacturer
- Nonin
- Size
- 1.25 x 1.75 x 2.5"
- Item Package Dimensions L x W x H
- 5.47 x 3.07 x 2.48 inches
- Package Weight
- 0.12 Kilograms
- Item Dimensions LxWxH
- 1.25 x 1.75 x 2.5 inches
- Brand Name
- Nonin
- Number of Items
- 1
- Part Number
- 114618-001
- Included Components
- TruO2 OTC Pulse Oximeter, 2AA Batteries
- ASIN
- B0DNNVNYMC
- Customer Reviews
- 4.2 4.2 out of 5 stars 29 ratings 4.2 out of 5 stars
- Best Sellers Rank
- #140,250 in Health & Household (See Top 100 in Health & Household) #119 in Athletic & Aviation Pulse Oximeters
- Date First Available
- December 20, 2024
- Brand
- Nonin
- Material
- Plastic
- Color
- Black
- Compatible Devices
- Smartphones
- Product Dimensions
- 1.25"L x 1.75"W x 2.5"H
- Sensor Type
- Optical
- Battery Description
- Alkaline
- Global Trade Identification Number
- 00849686050653
- Manufacturer
- Nonin
- Size
- 1.25 x 1.75 x 2.5"
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About the Author
Expert analysis by Silas Keating
Silas Keating
Expert ReviewerContributing Writer
Silas writes about performance gear and the memorabilia that celebrates it for Review Atlas. He tests training shoes and wearables for pacing accuracy, then switches to grading cards and display cases with collector‑grade care. His approachable, stats‑savvy style connects game‑day thrill with smart, lasting purchases.
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View Full ProfileHow We Tested This Product
Our rigorous, independent testing process
Testing Period
30 days
Tested By
Silas Keating
Our Testing Process
- We purchase all products at full retail price to ensure unbiased testing
- Products are tested in real-world conditions matching everyday use
- Our experts conduct both objective measurements and subjective evaluations
- Reviews are regularly updated as new products enter the market
- Tested according to our Children's Sports & Outdoors Books testing methodology
Last updated: November 17, 2025
|Independently tested and reviewed