DESC: All stainless steel cavities and sealed-in ceramic floors for cleanability and long life. Sturdy grab handles for ease of use and durability. Double safety switches, see-through door with interior oven light and thermal sensors to protect against overheating. NSF, UL, FCC. Sharp touch pad models also feature: Extra Menu doubles the memory pad to allow for 20 programs on 10 pads-easily switch from lunch to dinner menus. (Not on vending oven.) Double Quantity Pad automatically adjusts to the optimal heating time for two portions. Express Defrost automatically divides the defrost time into three stages and three power levels for easy and dependable defrosting. Memory Pads can be used as programmed or in manual operation. Memory Lock prevents memory loss during power outages. 3-Stage Programming choose from three power levels and times.