This meat fork is a meat thermometer and will test the temperature of meat and poultry to ensure that it is cooked to perfection. It tests for rare, medium rare, medium and well done.You need two AAA batteries (not supplied) and you simply press a button to turn the power on. You select the type of meat you wish to test. You can choose from beef, veal, lamb, pork, chicken and turkey.You insert the prongs into the thickest part of the meat to check the temperature. Simple and easy to use.