Use the lower depth mode on thinner walls made of single-sheet drywall ... were to letting you know exactly what’s back there. I also noted how gently each stud finder treated the wall ...

Notches in non-bearing walls can't exceed 40 percent of their width. The edge of a hole must be at least 5/8 in. from the edge of a stud. To appease the plumbing gods, building codes have made at ...