MightySatTM Rx
Fingertip Pulse Oximeter

Featuring Masimo SET® Measure-through Motion and Low Perfusion™ Pulse Oximetry


Oxygen Saturation

Pulse Rate

Perfusion Index

Respiration Rate from the Pleth

Pleth Variability Index


Masimo SET®: The Choice of Leading Hospitals Worldwide

  • > Masimo SET® overcomes the challenges of low perfusion and motion artifact that limit conventional pulse oximetry by harnessing the power of adaptive filters to reduce measurement inaccuracy.
  • > In a study comparing the performance of three pulse oximeters during conditions of patient motion and low perfusion, researchers found that Masimo SET® identified desaturation events with the highest sensitivity and specificity.1

Designed for Performance

Free Downloadable Masimo Professional Health App3

Display parameter data to a compatible smart device with Bluetooth® LE enabled models. Measurements can also integrate into Apple’s Health app.4

Comparison at a Glance


MightySat Rx

Onyx® II 9560

Key Product Features

Parameters: SpO2 and PR featuring Masimo Signal Extraction Technology® (SET®)



Parameter: Perfusion Index (PI)



Parameter: Respiration Rate (RRp)



Parameter: Pleth Variability Index (PVi)



Pleth Waveform



Rotating and adjustable colour screen for real-time display of all measurements



App includes: high resolution pleth waveform, smart tone audible feature, and trending functionality



Customisable settings with use of touchpad



Results in Two Easy Steps

Kit includes: MightySat Rx device, lanyard, batteries, and carrying case

Unique Parameters and Indicators

Signal I.Q. (SIQ)

Located under the plethysmographic waveform. The height of the vertical line provides an assessment of the confidence in the SpO2 value displayed.

Plethysmographic (Pleth) Waveform

Real-time pulse pressure waveform.

Perfusion Index (PI)

The ratio of the pulsatile blood flow to the non-pulsatile blood in peripheral tissue used to measure peripheral perfusion.

Respiration Rate from the Pleth (RRp)

RRp is a measurement of respiration rate based on changes in the plethysmographic waveform. The unit of measure is respirations per minute (RPM).

Pleth Variability Index (PVi)

A measure of the dynamic changes in the perfusion index (PI) that occur during the respiratory cycle.

High resolution view of the pleth waveform when viewed on a smart device.

MightySat Rx Models

MightySat Rx
P/N 9707

MightySat Rx with
Bluetooth LE
P/N 9807

MightySat Rx with Bluetooth LE, RRp & PVI
P/N 9907

Masimo SET® Measure-through Motion and Low Perfusion Technology


SpO2 (Oxygen Saturation)

PR (Pulse Rate)

PI (Perfusion Index)

RRp (Respiration Rate)


PVi (Pleth Variability Index)



Pleth Waveform

150 Degree Viewing Angle

Rotational Screen

Bluetooth LE


Compatible with Masimo Professional
Health App3


Four Year Limited Warranty

MightySat Rx Compatibility

Compatible with iOS 8 and 9

  • > iPad Air 2
  • > iPad Air
  • > iPad 4
  • > iPad 3
  • > iPad 2*
  • > iPad Mini (4th generation)
  • > iPad Mini (3rd generation)
  • > iPad Mini (2nd generation)
  • > iPad Mini (1st generation)
  • > iPhone 6S Plus
  • > iPhone 6S
  • > iPhone 6 Plus
  • > iPhone 6
  • > iPhone 5C
  • > iPhone 5S
  • > iPhone 5
  • > iPhone 4S
  • > iPod touch (5th generation)
  • * No support for Bluetooth Low Energy which is required for MightySat Rx
  • ** No support for Bluetooth Low Energy with Jelly Bean 4.1 and 4.2 which is required for MightySat Rx

Compatible with Android Jelly Bean**, KitKat, Lollipop, and Marshmallow

  • > Samsung Galaxy Note 10 (2014 edition)
  • > Samsung Galaxy Note 4
  • > Samsung Galaxy Note 3
  • > Samsung Galaxy Note II
  • > Samsung Galaxy S6
  • > Samsung Galaxy S5
  • > Samsung Galaxy S4
  • > Samsung Galaxy S3
  • > Nexus 9
  • > Nexus 7
  • > Nexus 6
  • > Nexus 5
  • > Huawei Ascend Mate 7
  • > Droid Mini
  • > Motorola RAZR M
  • > Xiaomi Mi4
  • > Micromax Canvas Juice 2
  • > Micromax Unite 3


  • 1 Shah N et al. J. Clin Anesth. 2012 Aug; 24(5):385-91.
  • 2 Masimo data on file
  • 3 The app is downloadable from the App storeSM for iOS devices or Google Play™ store for select Android devices. For an up-to-date list of compatible smart devices, see compatibility section above.
  • 4 Apple is a registered trademark of Apple Inc. registered in the U.S. and other countries.
  • © 2017 Masimo. All Rights Reserved. All trademarks and/or copyrights are properties of their respective owners. The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Masimo is under license. IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license. iPhone, iPad, iPod, and iPod touch are registered trademarks of Apple Inc. registered in the U.S. and other countries. Android is a trademark of Google Inc.


Product Information
Mightsat Rx

MightySat Rx with Respiration Rate has obtained CE Marking. Not available in the U.S. or Canada.

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