You need one of them that sticks right into the turkey and measures the inside temp.... 165 is what you want to hit with a turkey but here's a trick... Wrap the wings and legs in foil and let the breast cook at least an hour before removing the foil as they will cook faster and over cook if allowed to cook at the same time as the breast... Actually, it's okay to wrap cold cloth around the legs and wings and then cover in foil... When it hits 165, cut off the heat but allow it to sit in the over an extra 30 minutes... Then it's done...

B~