Electronic stud finder detects hidden wood and metal studs with an auto deep scan capability of up to 1-1/2 in. The device offers mutable audible alerts and bright LEDs across the top, clearly indicating the full width of the stud. It features an ergonomic handheld grip, hold mode, and withstands a 6.6 ft drop. Felt pads protect walls during use and a bubble vial assists with alignment. Klein® ESF100 Electronic Stud Finder with 2 AA Batteries and Manual, Alkaline, Black/Orange