The clinical standard in regional oximetry

INVOS™ OxyAlert™ NIRSensors for infants and neonates are used with the INVOS™ cerebral/somatic oximeter to generate continuous, noninvasive readings of regional blood oxygen levels in up to four site-specific areas chosen by the care team.

INVOS™ OxyAlert™ NIRSensors are applied to the skin’s surface, and are user and patient friendly, making monitoring of ischemic threats to the brain and body safe and easy. By reporting venous weighted regional hemoglobin oxygen saturation (rSO2) in tissue directly beneath the sensor, this reflects oxygen remaining after tissue demand has been met.

Complimentary INVOS™ Analytics Tool

Learn how the INVOS™ analytics resource facilitates evaluation of regional oxygenation case data.

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  • Noninvasive, continuous measurement
  • For application anywhere on the body
  • For infants and neonates >2.5kg <40kg
  • Contains a gentle, medical-grade, hypoallergenic hydrocolloid patient adhesive
  • Disposable; designed for single use
  • Non-sterile
  • Latex-free
Sensor Dimensions 2.72" (6.9 cm) length x 0.97" (2.5 cm) width
Depth (Thickness) 0.1005" (2.55 mm)
Weight 1.1 oz (31g)
Sensor Cable Length 5 feet (1.5 m)
Patient Adhesive Hydrocolloid (medical grade)
Calibration Precalibrated; no need for user calibration
Safety Class Continuous Operation
Type BF Class I
Environmental Requirements
Operating Temperature 60ºF – 106ºF (16ºC – 41ºC)
Humidity 20% – 80% relative humidity, non-condensing
Altitude To 10,000 feet (3,048 m)
Temperature -4ºF – 110ºF (-20ºC – 45ºC)
Humidity 20% – 80% relative humidity, non-condensing
REF: 12-PM-0012a


Reflect site-specific tissue perfusion noninvasively

Learn more about how INVOS™ technology provides clinicians with immediate, actionable information to optimize patient care.