Radius T°™

Radius T°™ Support

How to Use It

FAQs

Troubleshooting

Manuals

Contact Us

How to Use It

Get started with the Radius T° Continuous Thermometer:

Download the Masimo Radius T° App, then follow instructions in the app to pair with your Radius T° Sensor.

Number 1 with circle around it

Activate Battery

Remove sensor from pouch and pull tab to activate battery.

Illustration of pulling tab to activate battery on Radius T
Number 2 with circle around it

Application Site

Choose an application site on the upper chest below the left collar bone. Make sure the site is hair-free, clean and dry.

Illustration of where to place device on body
Number 3 with circle around it

Remove Plastic

Remove plastic film from the back of the sensor.

Illustration of pulling sticky paper off back of device
Number 4 with circle around it

Apply Sensor

Apply sensor to the site and press around the adhesive to ensure it is secure.

Illustration of placing the sensor on the application site

Additional Resources:

FAQs

Who can use Radius T°?

Radius T° sensors are indicated for use on adults and children ages 5 and up. The sensors should not be used by people who experience allergic reactions to adhesive tape.

What is included in the Radius T° kit?

Each kit contains 3 continuous temperature sensors and Setup Instructions. Each sensor can be worn continuously for up to 8 days and is fully disposable after use. The Masimo Radius T° Mobile App is downloaded separately.

Does the system require a smartphone?

Yes, a smartphone equipped with Bluetooth® is necessary to use Radius T°.

Is the system compatible with my smartphone?

Radius T° is compatible with Android and iOS devices. View a list of compatible phone operating systems and versions.

How do I download the Masimo Radius T° App?

Search for “Masimo Radius T” in the App Store (for iOS) or Google Play (for Android).

Is the app available for tablets?

No, the Masimo Radius T° app is not available for tablets.

Does Radius T° require a Wi-Fi or cellular data connection?

Once the app is downloaded onto your smartphone, you do not need Wi-Fi or a cellular data connection. The wearable temperature sensor connects to your mobile device via Bluetooth.

How close does my phone need to be to the sensor?

The sensor must be within Bluetooth range of your phone to receive data. This distance can vary depending on the use environment, but can be up to 100 feet maximum distance with direct visual line of sight between the sensor and your phone.

Can I use my mobile phone to do other things while tracking someone’s temperature?

Yes, the app can run in the background and continue to receive data collected from the sensor. However, do not quit the app or your temperature session will disconnect.

Can I track the temperature of more than one person at a time?

The app can only be paired with one sensor at a time. If you pair your mobile phone to a new sensor, any active connection to another sensor will be lost.

Can two people track someone’s temperature at the same time?

No, only one app can be paired to the same sensor at the same time.

How long does the battery last?

Each sensor lasts for up to 8 days of continuous use. The light on the sensor will flash orange when the sensor battery is low. A flashing red light indicates the sensor battery is out of power and is no longer transmitting data.

Can I get the sensor wet?

The sensor is water resistant (IP24 rating) – it can be worn in the shower but should not be submerged.

How do I take the sensor off?

To remove the sensor, gently peel off the adhesive from the skin.

Can I reapply a sensor after wearing it?

Radius T° sensors are designed for removal and reapplication no more than one time over the life of the product. To re-apply: (1) Clean and dry the sensor application site. (2) Gently wipe the exposed sensor adhesive with an alcohol wipe and allow it to dry to restore the adhesive properties. (3) Follow the steps in the Apply Sensor section of your Setup Instructions. Each sensor should only be used on a single person.

How do I dispose of a sensor after I’ve used it?

Dispose of used Radius T° sensors in accordance with local laws for the disposal of products containing electronic components.

What do the different colored lights mean on my sensor?

The light on the sensor indicates battery status and whether it is paired with your phone:

Color Sensor Description Next Steps

No light

  • Sensor power is off.
  • Confirm battery pull tab has been removed to activate the battery.
  • Replace the sensor.

Green

flashing

  • Sensor is on and waiting to pair with your mobile phone.
  • Follow instructions to pair with your mobile phone.

Blue

flashing


solid

  • Sensor is waiting for you to confirm that desired sensor was paired to your mobile phone.

  • Successful pairing of sensor and mobile phone.
  • Mobile phone successfully receiving data.
  • Verify the sensor is properly attached to the wearer’s body so that mobile phone can receive data.

Orange

flashing

  • Low sensor battery
  • Consider replacing the sensor.

Red

flashing

  • Depleted sensor battery
  • Hardware or sensor failure, sensor blinking board failure code
  • Replace the sensor.

What happens to my data?

We do not collect nor do we download the data collected by the mobile application, which includes data you enter manually and temperature data from the Radius T° sensor. Your data remains on your mobile device and is deleted if you delete the application.

What data is stored on my Radius Tº Sensor?

Your sensor stores historical temperature measurements which are communicated to the Masimo Radius T° app when your phone is in range with and connected to the sensor.

Does my Radius T° Sensor store any personal identifiable data?

No personally identifiable information (PII) is stored on the Radius T° Sensor. Any user profile information you enter is only saved on the phone within the Masimo Radius T° app and is never sent to the sensor, nor is that information shared with Masimo.

Troubleshooting

The color of the indicator light on your Radius T° Sensor can be used to understand device status and help troubleshoot issues:

Color Sensor Description Next Steps

No light

  • Sensor power is off.
  • Confirm battery pull tab has been removed to activate the battery.
  • Replace the sensor.

Green

flashing

  • Sensor is on and waiting to pair with your mobile phone.
  • Follow instructions to pair with your mobile phone.

Blue

flashing


solid

  • Sensor is waiting for you to confirm that desired sensor was paired to your mobile phone.

  • Successful pairing of sensor and mobile phone.
  • Mobile phone successfully receiving data.
  • Verify the sensor is properly attached to the wearer’s body so that mobile phone can receive data.

Orange

flashing

  • Low sensor battery
  • Consider replacing the sensor.

Red

flashing

  • Depleted sensor battery
  • Hardware or sensor failure, sensor blinking board failure code
  • Replace the sensor.

If you have tried all of these steps but still have issues, please contact Masimo Customer Support.

Manuals

Device Compatibility

Masimo tests and validates with a variety of mobile devices to ensure compatibility. If you do not see your mobile device currently listed below, check back soon, as we frequently add support for new mobile devices. Please contact Masimo Customer Support with any questions.

Download and install the free Masimo Radius T° App from: Apple/App Store or Android/Google Play.

Phone

  • Apple
    • iOS 13 and up
    • Display Size 4.7" and up
  • Android
    • Android 6.0 and up
    • Display Size 4.7" and up

Tablets

  • Tablets are not compatible with the Radius T° System at this time.

Contact Us

Please contact Masimo Customer Support with any questions. For customers traveling outside the U.S. with their Masimo product, local contact information can be found at www.service.masimo.com.

Call Us

(800) 326-4890 (Opt. 3) for MightySat, iSpO2 Monday through Friday, 8 AM to 5 PM (800) 916-1270 for all other products 24/7

customercare@masimo.com Nevada Residents: To exercise your privacy opt-out rights under Nevada SB220, send an e-mail to NevadaPrivacy@masimo.com.

Headquarters
52 Discovery, Irvine, CA 92618

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