CookTek 659801 SinAqua Induction Soup Well works with standard soup tureens both of 7 qt and 11 qt. Constructed out of heavy-duty aluminum with stainless steel top ring for locating pan. The microprocessors monitor the vital components 120 times per second to check for overheating and power supply issues and will shut off and display error codes. Auto pan detection and will go in to low power mode when a pan is not present. Four standard temperature settings of 160F, 170F, 180F and 190F. Includes a polycarbonate top that is easy to clean. Two-year limited warranty in both the U.S. and Canada. Made in the U.S.A. - Aluminum - For 7 qt or 11 qt - Sold per each