TruO2® OTC Model 3250

FDA-Cleared, Over-the-Counter, Wireless Fingertip Pulse Oximeter

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TruO2® OTC Model 3250

FDA-Cleared, Over-the-Counter, Wireless Fingertip Pulse Oximeter

The TruO2® OTC Fingertip Pulse Oximeter is an FDA-cleared device that delivers accurate blood oxygen and pulse rate readings across all skin tones.1

​Not all pulse oximeters are created equal. Many deliver unreliable readings for people with dark skin or low perfusion.2 TruO2 OTC is a fingertip oximeter that is accurate across patients of all skin tones.1 Made with the same medical-grade pulse oximetry technology used in Nonin pulse oximeters for patients, clinicians, and the military, TruO2 OTC delivers readings you can count on. It’s inclusive pulse oximetry monitoring available over the counter—no prescription required.1

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Equitable Accuracy

Delivers accurate measurements across all skin tones and for patients with low perfusion.1

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FDA-Cleared

Cleared by the U.S. Food and Drug Administration (FDA)​.

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Over the Counter

Provides medical-grade performance without a prescription and is HSA/FSA eligible​.

Fast and Accurate

Equipped with Nonin PureSAT® technology, TruO2 captures accurate oxygen and pulse rate measurements quickly1​

Bright Display

Easy-to-read, LCD display features clear digits and symbols

No Guesswork​

Nonin CorrectCheck™ technology notifies user if the finger is not placed correctly in the device​

Automatic On/Off

Power turns on when applied, and off when finger is removed

Capture and Send

Nonin SmartPoint™ capture algorithm determines when a high-quality measurement is ready to be wirelessly transmitted​

Track and Share

Using a compatible iOS® device, save and share readings with the Apple Health app, or send history by email through the NoninConnect™ App

Bluetooth® Wireless Connection​

Secure, cable-free connectivity to any compatible Apple® device

Long Battery Life

Provides up to 2,200 spot checks on two AAA batteries (included)4

Durable Design

Rugged construction backed by a 2-year warranty​5

FDA-Cleared Performance
In Your Hands

Enjoy the confidence in knowing you’re getting blood oxygen and pulse readings you can count on.1 TruO2 OTC is a medical-grade, fingertip oximeter that has achieved FDA clearance for over-the-counter use—no prescription required.​

View the Feature Sheet

Testing the Limits
of Pulse Oximetry

Every medical care scenario has challenges and complications. Factors such as motion or low perfusion can affect pulse oximetry readings. At low saturations, it has been shown that readings on individuals with darkly pigmented skin can be off by up to eight percentage points.6

Read Nonin's Pulse Oximetry Technology Brochure to Learn More

Accurate and Inclusive
Pulse Oximetry

Many unregulated pulse oximeters deliver unreliable readings for people with dark skin or low perfusion.2,3 Since 1986, Nonin has been committed to developing accurate, trusted fingertip oximeters for a diverse range of skin tones.1

See Why Nonin Cares About Health Equity

Product and Support Information

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Purchase Info