Electronic stud finders are generally unreliable, fragile, and in need of tedious calibration before each use. That’s why we’re delighted to say that the best stud finders use a technology no more complicated than a simple magnet.For all of your mirror-hanging, TV-mounting, and general renovation needs, we recommend the C.H. Hanson 03040 Magnetic Stud Finder. It’s durable, accurate, inexpensive, and easy to use. What more could you want out of a stud finder?