Respiration Rate

Acoustic Respiration Rate (RRa) provides noninvasive and continuous monitoring of respiration rate


  • > Adhesive Respiratory Acoustic Sensor (RAS) is applied to the neck, near the trachea, detecting the vibrations associated with respiration
  • > Using acoustic signal processing that leverages Masimo Signal Extraction Technology® (SET®), the respiratory signal is separated and processed to display continuous respiration rate

Respiratory Acoustic Sensor (RAS) Series


Upgradeable rainbow SET Technology Platform

Masimo rainbow SET is a noninvasive monitoring platform featuring Masimo SET® Measure-through Motion and Low Perfusion pulse oximetry with the option to measure multiple additional parameters

  • > Oxygen Saturation (SpO2)
  • > Pulse Rate (PR)
  • > Perfusion Index (PI)
  • > Pleth Variability Index (PVI®)
  • > Oxygen Content (SpOC)
  • > Oxygen Reserve Index™ (ORi™)
  • > Total Haemoglobin (SpHb®)
  • > Methaemoglobin (SpMet®)
  • > Carboxyhaemoglobin (SpCO®)
  • > Acoustic Respiration Rate (RRa)
  • > Respiration Rate from the Pleth (RRp)
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masimo Product Information

For professional use. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.

RAS-45, Rad-97™, ORi, and RRp have obtained CE Marking. Not available in the U.S. RAS-45, Rad-97, ORi, and RRp are not licensed for sale in Canada.