Quick answer: The Nonin WristOx2 3150 BLE is a clinical-grade, wrist-worn pulse oximeter for continuous SpO₂ and pulse-rate monitoring — ideal for overnight oximetry, sleep studies, homecare, and ambulatory use. Worn like a watch with a finger sensor, it uses Nonin's PureSAT® technology for accurate readings even in low perfusion or motion, records up to 1,080 hours of data, and transfers it wirelessly via Bluetooth® Low Energy to nVISION® software, NoninConnect apps, or the Nonin Health® cloud platform. Made in the USA with a 3-year warranty.
What is the WristOx2 3150 BLE for?
Built for extended, reliable monitoring rather than quick spot-checks, the WristOx2 3150 records oxygen saturation and pulse rate over long sessions and stores the data for review. It's designed for accurate SpO₂ and pulse-rate monitoring in sleep labs, homecare, and ambulatory settings using PureSAT technology, and is suitable for adults and pediatrics over 30 lbs (14 kg). Common uses include overnight oximetry, sleep-apnea screening, home oxygen assessment, six-minute walk tests, and non-invasive ventilation (NIV) monitoring.
Key features
- Wrist-worn, watch-style design — lightweight (~70 g) and comfortable for long sessions.
- PureSAT® technology — accurate readings, even in low perfusion and motion.
- Bluetooth® LE + USB — wireless or wired data transfer to nVISION® and compatible apps.
- Up to 1,080 hours of memory — at a 4-second sampling rate (1- or 2-second high-resolution options).
- Long battery life — about 48 hours (≈24 hours with Bluetooth) on 2 AAA batteries.
- Memory Volume Indicator (MVI) mode — confirms enough data was recorded for a study.
- Nonin Health® platform — secure, cloud-based remote access to oximetry data.
Specifications
| Specification | Detail |
| Product type | Wrist-worn pulse oximeter |
| Technology | Nonin PureSAT® |
| Connectivity | Bluetooth LE + USB |
| SpO₂ range | 0–100% |
| Pulse rate range | 18–321 BPM |
| Display | 3-digit LCD |
| Memory | Up to 1,080 h (4 s) / 540 h (2 s) / 270 h (1 s) |
| Battery | 2 × AAA — ~48 h (≈24 h with Bluetooth) |
| Patients | Adult & pediatric (>30 lb / 14 kg) |
| Dimensions / weight | 51 × 73 × 19 mm / ~70 g (with batteries & wristband) |
| Origin / warranty | Made in USA / 3-year warranty |
What's included
Single unit — includes a sensor of choice and a wristband. Starter kit — includes a sensor of choice, three wristbands, a carrying case, a USB download cable, and nVISION® software. (Confirm which configuration this listing is.)
Sensors & compatibility
The WristOx2 3150 uses WristOx2-series sensors (WO2 connector) — available as reusable soft sensors in small, medium, and large, or as single-use cloth-wrap sensors. Use only WristOx2 (WO2) sensors with this device.
Frequently asked questions
What is this oximeter used for? Continuous SpO₂ and pulse-rate monitoring — especially overnight oximetry, sleep studies, walk tests, and homecare.
What is the Bluetooth LE used for? Wireless transfer of recorded data to nVISION software, NoninConnect apps, or the Nonin Health cloud platform for analysis and reporting.
How long does the battery last? About 48 hours without Bluetooth, or roughly 24 hours with Bluetooth active, on 2 AAA batteries.
Which sensors does it use? WristOx2-series sensors (WO2 connector) only — reusable soft sensors (S/M/L) or single-use cloth sensors.
Is it good for sleep studies? Yes — the wrist-worn design and up to 1,080 hours of memory make it well suited to overnight and multi-night recording.
Can I get it delivered in Brooklyn or shipped nationwide? Yes — Task Supply Corp offers USPS shipping throughout the continental U.S., plus local pickup and delivery in Brooklyn and all five boroughs of New York City.
This is a clinical medical device. Use it according to the manufacturer's instructions and your healthcare provider's guidance. Readings should be interpreted by a qualified clinician.