The Insider Picks team writes about stuff we think you’ll like. Business Insider has affiliate partnerships, so we get a share of the revenue from your purchase. A stud finder can make the difference between that framed painting hanging majestically for years to come and it crashing to the ground an hour after you hang it as a chunk of drywall rips out in the process. Many stud finders can also make the difference between you drilling a hole or hammering a nail into a water pipe, thereby turning a modest project like putting up a shelf or mounting a TV into a serious home repair almost surely involving pricey professionals. In short, a stud finder is an important tool if you value doing a job right and avoiding potentially serious mishaps. But don’t worry, this important tool is also affordable and easy to use. Many operate with the push of a single button and use easily interpreted lights to indicate the location of hidden studs. Some have an even more basic operation, simply adhering to the wall near studs thanks to magnetism. And many can also detect electrical wires, helping keep you safe and preventing accidental damage to the wiring in your home, office, or wh...