This twisted pair heating cable by Schluter Systems is designed specifically for use with the Ditra-Heat membrane for interior floor warming applications. The 240-Volt cable comes with one temperature sensor and can be installed without returning to the thermostat. Coverage area is 21.4 sq.ft. The cable can be placed on the floor wherever heat is desired. Self-levellers are not needed to encapsulate cables making installation faster and easier. 15-year limited warranty.