Error or Error Message

Possible Causes

Recommended Solutions

A red battery symbol displays on display screen.

Low Battery

Replace low batteries as soon as display screen. 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 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 section in this manual)

Choose different finger

Contact Masimo Technical Services

Device keeps turning off while on the finger

Incorrect finger placement

Environmental influences

Device damaged

Reposition finger (See Using MightySat section in this manual)

Relocate device

Contact Masimo Technical Services

Measurement does not display on the smart device

Bluetooth not connected

Compatible App not installed on smart device

Device damaged

Smart device damaged

Confirm Bluetooth is on for the MightySat and the smart device

Confirm the Masimo app is installed on the smart device

Close and re-launch Masimo app

Check that MightySat is paired to the correct smart device

Contact Masimo Technical Services

Operator’s Manual

Please contact Masimo Technical Services with any questions or assistance you may need regarding your Masimo Fingertip Pulse Oximeter. For customers in the USA, support is available at TechSupport-US@masimo.com or (800) 326-4890. For customers traveling outside the USA with their Masimo Fingertip Pulse Oximeter, local contact information can be found at http://service.masimo.com.

Device Compatibility

Compatible with iOS 9 and 10: 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 7 Plus, iPhone 7, iPhone 6S Plus, iPhone 6S, iPhone 6 Plus, iPhone 6, iPhone 5C, iPhone 5S, iPhone 5, iPhone 4S, iPod touch (5th generation)

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, Nexus 9, Nexus 7, Nexus 6, Nexus 5, Samsung Galaxy S6, Samsung Galaxy S5, Samsung Galaxy S4, Samsung Galaxy S3, Huawei Ascend Mate 7, Droid Mini, Motorola RAZR M, Xiaomi Mi4, Micromax Canvas Juice 2, Micromax Unite 3

*No support for Bluetooth LE which is required for MightySat.

**No support with Jelly Bean 4.1 and 4.2 which is required for MightySat.

PLCO-001098/PLMM-10534A-0717