The Nonin WristOx2 Model 3150 USB is a compact pulse oximeter that is worn on the wrist, just like a watch. The device provides continuous and reliable measurements of oxygen saturation (SpO₂) and pulse rate.

Please note that this product does not come with a cable.

Key benefits
Comfortable to wear on the wrist
Suitable for long-term SpO₂ monitoring
Measures oxygen saturation and pulse rate
Reliable measurements during movement and at low perfusion levels
Ideal for overnight oximetry studies
Suitable for home use, hospitals and sleep laboratories
Supports reporting via Nonin nVISION software
Suitable for use in pulmonary rehabilitation and the 6-Minute Walk Test
Suitable for sleep apnoea screening and oxygen qualification
Compatible with Nonin PureLight® sensors
Large display and improved sensor connection
Up to 1,080 hours of memory at four-second sampling intervals
Additional measurement options of one or two seconds
Secure data transfer via USB
Up to 48 hours’ use on two AAA batteries
Single-use accessories available to minimise cross-contamination