Simple, quick and easy to use; the ET-66 RediFork Pro LCD Thermometer is designed for one-hand use. It instantly checks readiness and doneness of food-never overcook again. The auto-on operation; display turns on automatically when temperature of food is above 113-degree F. Check fish, beef, lamb, turkey, ham or pork without changing settings.Set desired temperature. Redi-Fork beeps when your food is ready. Flashlight assists visual inspection of doneness and helps determine E. coli safeness. The RediFork Pro is great for grilling, oven and microwave cooking. The perfect chef"s tool. 2 heavy-duty AA batteries included. Low battery indicator tells when to change.