ecobee EB-RMS-01 Remote Temperature Sensor Module Intuitive User Interface makes it easy to quickly set a personalized program Built-In Wi-Fi enabled. Adjust settings anywhere, anytime via Computer, Smartphone, or Tablet Build-In Live Weather Functions to assist in saving the most energy possible Intuitive User Interface makes it easy to quickly set a personalized program Built-In Wi-Fi enabled. Adjust settings anywhere, anytime via Computer, Smartphone, or Tablet. Build-In Live Weather Functions to assist in saving the most energy possible Mobile Apps available for Apple IOS and Google Android smart phone and tablets Broadband Internet access required for Wi-Fi, Weather, and Mobile features