MightySatTM Rx
Fingertip Pulse Oximeter

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


Oxygen Saturation

Pulse Rate

Perfusion Index

Pleth Variability Index


Masimo SET® – Leading Technology Used in Hospitals Worldwide

  • > In a study comparing three pulse oximetry technologies, Masimo SET® demonstrated the highest sensitivity and specificity in identifying desaturation events during conditions of motion and low perfusion1
  • > Masimo SET® pulse oximetry helps clinicians monitor more than 100 million patients a year2

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: 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



Flexible finger pad



Results in Two Easy Steps

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

Unique Parameters and Indicators

Signal IQ® (SIQ)

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

Perfusion Index (PI)

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

Pleth Variability Index (PVI)

A measure of the dynamic changes in the perfusion index (PI) that occur during the 74 respiratory cycle.

Plethysmographic (Pleth) Waveform

Real-time pulse pressure waveform.

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 & PVI
P/N 9907

Masimo SET® Measure-through Motion and Low Perfusion Technology


SpO2 (Oxygen Saturation)

PR (Pulse Rate)

PI (Perfusion Index)

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 Store® for iOS devices or Google Play™ store for select Android devices. For an up-to-date list of compatible smart devices, see: www.masimoprofessionalhealth.co.uk
  • 4 Apple, iPhone, iPad, and iPod touch are registered trademarks of Apple Inc. registered in the U.S. and other countries.
  • Bluetooth is a registered trademark owned by Bluetooth SIG, Inc.
  • IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
  • Android is a trademark of Google Inc.
  • MightySat Rx with Respiration Rate has obtained CE Marking. Not available in the U.S.


Product Information
MightySat Rx

See the proof for yourself

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