Have you ever tried to hang a heavy picture frame or mount a flat-screen TV, only to find that your stud finder doesn’t seem to work? It beeps randomly, shows inconsistent readings, or just plain ...

Some stud finders have other helpful features like deep scanning and live wire detection. These can prevent you from hitting a pipe or wire when hanging something up—expensive mistakes when you make ...

Some even detect double-stud construction. To test the degree of accuracy, we constructed a test wall that mimicked the configuration of an actual wall to see how precise the stud finders were. Find ...