(untitled)

I just uploaded a pic of a studfinder and Im not sure what I am doing with uploading but im trying lol. Ok..it beeps and the red arrow shows when the center of stud is found but…is the center at the end of the light or the beginning…like the point of the arrow…OR is the whole red area the middle of stud?

That btw is just my wall where I am "practicing" finding the stud center!