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® – Proven Technology in Hospitals Worldwide

  • > In a study comparing the ability of three pulse oximetry technologies to detect hypoxic events, Masimo SET® demonstrated the highest sensitivity and specificity during induced 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 color screen for real-time display of all measurements



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



Customizable 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


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 respiratory cycle.

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.

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 9709

MightySat Rx with
Bluetooth LE
P/N 9809

MightySat Rx with Bluetooth LE & PVi
P/N 9909

Masimo SET® Measure-through Motion and Low Perfusion Technology


SpO2 (Oxygen Saturation)

PR (Pulse Rate)

PI (Perfusion Index)

PVi (Pleth Variability Index)



Pleth Waveform

3.3 cm Color Display

Rotational Screen

Bluetooth LE


Compatible with Masimo Professional
Health App4


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.com
  • 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.


Product Information
MightySat Rx

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.