Radius T°

Getting Started

Getting to Know Your System


Radius Tº is a wearable sensor that continuously measures body temperature

Radius T Sensors



Wearable chest sensor, placed on the upper chest under the left clavicle continuously collects temperature measurements

Woman wearing Radius T sensor on chest and SafetyNet Sensor on wrist and finger



Water resistant with a comfortable adhesive that makes it easy to re-apply or position within its 8-day battery life

Masimo SafetyNet App -- Activity Center --  displayed on screen

Use the Masimo SafetyNet App to view and share data.

  • The app uses Bluetooth® to connect to your Radius T° sensor to display continuous body temperature.
  • The app allows data to be shared with your care provider.
  • Use the app to complete CareProgram activities. Your responses are shared with your care provider.

Setting Up the Masimo SafetyNet App


You will receive an email from your care provider prompting you to download the Masimo SafetyNet App to your mobile phone.

Masimo SafetyNet App -- Email Center --  displayed on screen

If you did not receive the email, please check your Junk e-mail folder in case the email got delivered there instead of your Inbox.

If you still have not received it, please contact the care provider who initiated the Masimo SafetyNet program for you.

Launch the app and follow the step-by-step instructions to:

  • Create an account
  • Pair your Radius T° sensor to the Masimo SafetyNet App
  • Begin collecting and sharing data
Masimo SafetyNet App -- Login & Sign Up Center --  displayed on screen

Applying the Sensor


Pro Tips

  • You can shower while wearing the sensor
  • Do not submerge in water or any other liquid solution
  • Wipe the exposed adhesive with an alcohol swab and allow it to dry before reapplying