Nonin Model 3231 USB Pulse Oximeter
US$ 100 Price in USD — free shipping included
Independent profile. MedikalDevice is not affiliated with its manufacturer. Specifications come from public manufacturer documentation — confirm FDA status for your intended use. How we verify profiles.
A fingertip pulse oximeter that spot-checks SpO2 and pulse rate and sends readings over a USB connection, designed to integrate into telemedicine hubs and health kiosks (OEM). For adult and pediatric patients.
Key facts
| Product | Nonin Model 3231 USB Finger Pulse Oximeter |
|---|---|
| Manufacturer | Nonin Medical, Inc. |
| Intended users | Professional and home use |
| US FDA status | 510(k) cleared — K140785 |
| Market status | Available |
Main features
- Spot-check SpO2 and pulse rate with on-device display
- Nonin PureSAT pulse-by-pulse filtering
- Fits finger thickness 0.8-2.5 cm
- USB 2.0 communication and power (USB variant of the Bluetooth Model 3230)
- Reports pulse amplitude strength in data output
Connectivity
USB 2.0 to a host (telemedicine hub/kiosk/PC); no Nonin cloud platform.
AI and analysis software
The manufacturer does not describe built-in AI for this device. Because its data can leave the device, it can in principle feed separate analysis software; any such software is a distinct product with its own regulatory status.
Regulatory status in the United States
FDA 510(k) clearance: K140785. Cleared July 2014; derived from Model 3230 with Bluetooth replaced by USB.
Related guide: Choosing the Right Monitor for Vital Signs.
Sources
- nonin.com (manufacturer)
- accessdata.fda.gov
- nonin.com
Profile verified against public sources in October 2026. Trademarks belong to their owners.
