Masimo Root with O3 Regional Oximetry

Available for Adult, Paediatric, Infant and Neonatal Applications

O3 Regional Oximetry helps clinicians monitor cerebral oxygenation in situations in which peripheral pulse oximetry alone may not be fully indicative of the oxygen in the brain.

O3 Regional Oximetry monitors the regional hemoglobin oxygen saturation of blood (rSO2) in the region of interest for infant, neonatal, pediatric, and adult patients. With their flexible design, O3 sensors easily conform to and allow for ergonomic application.

O3 Display

O3 Monitoring

The Root patient monitoring and connectivity hub offers plug-and-play monitoring with Masimo Open Connect® (MOC-9®) modules.*

Apply the appropriate O3 sensors to the forehead:


  • Adult Adhesive Sensor (≥40 kg)
  • Paediatric Adhesive Sensor (≥5 kg and <40 kg)
  • Infant and Neonatal Adhesive Sensor (<10 kg)

Connect the O3 sensors to an O3 MOC-9 module (up to two sensors per module).

Connect the O3 MOC-9 module to one of three Root MOC-9 Ports.

A More Complete Picture of the Brain


O3 Regional Oximetry can be used simultaneously with Next Generation SedLine on the Root platform for a more complete picture of the brain. Next Generation SedLine brain function monitoring helps clinicians monitor the state of the brain under anaesthesia or sedation with bilateral acquisition and processing of four leads of electroencephalogram (EEG) signals. Next Generation SedLine features an enhanced signal processing engine, driving a variety of performance improvements, and an enhanced Multitaper Density Spectral Array (DSA).