Meat thermometers can be found in the housewares section of most grocery stores, in department stores and in specialty stores. Buy a thermometer, it is a sound investment in food safety.
An instant read thermometer can be digital or dial gauge and it comes in a storage case. Read the information on the package. Instant read thermometers have plastic heads and cannot go into the oven while the turkey is cooking. However, it will register the temperature of food within 15 seconds when the metal tip is inserted up to the dimple on the stem, thus the name "instant read." Always clean the tip before returning it to the case.
Standard meat thermometers are metal and designed to withstand oven temperatures. The sensing area is from the tip to a half-inch past the dimple. This area registers the temperature of the food. Examine the thermometer and familiarize yourself with the dial setting.