1.The Stud Buddy Magnetic Stud Finder The Stud Buddy doesn't require to be plugged into an AC outlet since it employs the energy of magnetism to detect wall studs. This unit was created by a contractor who had forty decades of experience locating wall studs and is among the simplest units on the market nowadays. It uses strong neodymium magnets to find drywall nails and screws, which leads to stud location discovery. It's a simple, quick and fool proof. 2.Welquic Electric 3-in-1 Stud Sensor This 3-in-1 stud detector has three different modes to help users get their work done quickly and accurately. It can scan for studs, scan for scan and metal for AC wires. It can detect voltage and metal up to a depth of 3-inches and can detect timber to a depth of 1.5-inches. This version is run by one 9-Volt battery also has a back-lit LCD screen and an automobile shut-off attribute which shuts down the unit as it has not been used in awhile. This makes it a very simple and affor