Made from stainless steel with glass tube; food safe; heat-resistant handle; easy-read face with candy temperature indicators Reads temperatures from 60 to 400-degrees Fahrenheit; perfect for deep frying doughnuts, French fries, fish, chicken, candy making, jelly, and more. Clip inside pot with point 2-inches into candy or oil without touching the bottom, slide red indicator to target temperature, cook according to recipe. Clips to pot for hands-free use. Temperatures in Fahrenheit and Celsius.