MightySat Rx Support

How to Use It

Getting Sarted

Masimo provides this step-by-step user guide to assist you in the use of the MightySat^® Rx device:

Set up your MightySat Rx

Download the free Masimo Professional Health App on the App Store or Google Play
Follow the App instructions to sync your MightySat Rx with your smart device

Listen to your body by quickly and accurately measuring key physiologic variables

Use of this device must follow the order of a physician
Place the MightySat Rx on the ring finger of your non-dominant hand (for example, the left hand for a right-handed person) and wait for the numbers to appear on the display
Tap the square below the screen to rotate the display for your optimal viewing angle
Learn from your body by tracking and trending your data in the Masimo Professional Health App
Share captured data via email with your doctors

FAQs

Pulse oximeters measure light absorption in the finger to noninvasively monitor oxygen saturation and pulse rate. Developed by Masimo, the leading brand of hospital pulse oximeters, the MightySat^® Rx Fingertip Pulse Oximeter provides accurate blood oxygen saturation and pulse rate measurements when other pulse oximeters fail.

Multiple companies have introduced low-priced, battery-powered “fingertip” pulse oximeters to the consumer market. In some circumstances, these products often provide inaccurate measurements or no measurements at all. This may occur when there is low blood flow to the finger (such as when the fingers are cold) or during hand movement (even with minimal motion such as shaking). In addition, many of the products on the market are of low quality and do not interface with smartphones to store, manage, and share data.
MightySat Rx is powered by Masimo SET^® pulse oximetry, the same technology used to monitor over 200 million patients annually at hospitals around the world.¹ MightySat Rx is accurate when other pulse oximeters fail.

Masimo Corporation originally developed Signal Extraction Technology^® (SET^® ) pulse oximetry for clinical use. Masimo SET^® is the primary pulse oximetry at 9 of the top 10 U.S. hospitals, as ranked in the 2022-23 U.S. News and World Report Best Hospitals Honor Roll.² Masimo SET^® uses five parallel signal processing engines that measure through challenging conditions, including movement and low blood flow.

Use of MightySat Rx device must follow the order of a physician.
MightySat Rx measure 5 key health parameters: Oxygen Level (SpO₂ ), Pulse Rate (PR), Perfusion Index (Pi), Breaths per Minute (RRp^® ), and Pleth Variability Index (PVi^® ).
MightySat Rx users can track and trend data seamlessly. See patterns and trends through the free Masimo Professional Health App and know when your health values are out of target range. You can share the data via email with your doctor.

Parameter data can be displayed on a compatible smart device with Bluetooth^® LE models. For a list of compatible smart devices, click here. The free Masimo Professional Health App is downloadable from the Google Play store for select Android devices or the Apple App Store for iOS devices. Please note that a MightySat Rx is required for the app to work.

MightySat Rx works with major smartphone brands (Android and iOS). For phone compatibility, click here

For any questions or assistance you may need regarding your Masimo MightySat Rx, please contact customer service.

Troubleshooting

Error or Error Message	Possible Causes	Recommended Solutions
A red battery symbol displays on display screen	Low Battery	Replace low batteries as soon as possible. (See Installing the AAA Batteries section in this manual)
Device does not display readings	Incorrect finger placement Incorrect battery orientation No battery Low battery Environmental influences	Wait for measurement (PVi may take up to 2 minutes before initial measurement) Reposition finger (see Using MightySat^® Rx section in this manual) Re-orient batteries Replace with new batteries Relocate device Contact Masimo Technical Services
Device display does not turn on	No battery Device damaged	Replace with new batteries Contact Masimo Technical Services
Numbers appear dim	Low battery Brightness set low Exposed to bright lights or sunlight Incorrect finger placement Measurement site may be poorly perfused	Check battery status indicator and replace batteries if necessary Check brightness setting in menu Relocate device so that it is no directly under bright lights Reposition finger (See Using MightySat Rx section in this manual) Contact Masimo Technical Services
Device keeps turning off while on the finger	Incorrect finger placement Environmental influences Device damaged	Reposition finger (See Using MightySat Rx section in this manual) Relocate device Replace with new batteries Contact Masimo Technical Services
Measurement does not display on the smart device using optional Bluetooth LE	Bluetooth LE not connected Compatible App not installed on smart device Device damaged Smart device damaged	Confirm Bluetooth LE is on for the MightySat Rx and the smart device Confirm the Masimo app is installed on the smart device Close and re-launch the compatible app on the smart device Check that MightySat Rx is paired to the correct smart device Contact Masimo Technical Services