Hospital-proven technology trusted by doctors and athletes
Stay on top of their fever with a hassle-free continuous thermometer (3-pack of sensors)
Radius T°™ Wearable Thermometer
Now there's an easier way to see when a fever spikes, so you know when to take action.
Wearable sensor lets you track your temperature even during sleep
Automatically notifies your smartphone if temperature is high†
Easily track a fever's progress over time
MASIMO RADIUS T° APP
Remove sensor from pouch and pull tab to activate battery.
Choose an application site on the upper chest below the left collar bone. Make sure the site is hair-free, clean, and dry.
Remove plastic film from the back of the sensor.
Apply sensor to the site, and press around the adhesive to ensure it is secure.
Radius T° disposable 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.
Yes, we offer complimentary ground shipping on all US orders.
You can return or exchange new, unopened Product purchased directly from Masimo within 30 days of the original purchase date. Please read our return policy for more details.
Radius T° comes with a two-year limited warranty. Please read our warranty policy for more details.
The sensor is water resistant (IP24 rating) – it can be worn in the shower but should not be submerged.
Radius T° is compatible with Android and iOS devices.Specifically on phones it is compatible for iOS 13 and up, on display sizes 4.7inches and up.For Android phones it is compatible on Android 6.0 and up, on display sizes 4.7inches and up.Tablets are not compatible with the Radius T° system at this time.
Search for “Masimo Radius T” in the iOS App Store or Google Play.
Yes, a smartphone euipped with Bluetooth® is necessary to use Radius T°.
No, the Masimo Radius T° app is not available for tablets at this time.
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®.
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.
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.
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.
No, only one app can be paired to the same sensor at the same time.
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.
To remove the sensor, gently peel off the adhesive from the skin.
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.
Dispose of used Radius T° sensors in accordance with local laws for the disposal of products containing electronic components.
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.
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.
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.
The color of the indicator light on your Radius T° Sensor can be used to understand device status and help troubleshoot issues:
No light
—
Green
flashing
Blue
solid
Orange
Red
If you have tried all of these steps but still have issues, please contact Masimo Customer Support.