In addition to the wood studs (or their steel screws) that all stud finders locate, some also differentiate between other hidden objects, like metal pipes and live wiring. These multifunctional ...

For our evaluations, we built a four-by-eight-foot wall from common materials: wood and metal studs; drywall; copper, black, pex, and PVC pipes; and nonmetallic sheathed cable. Then, we scanned ...