: Move the unit in a "Z" pattern across the wall surface.
Senses wood and metal studs with an accuracy of up to 1/8 inch for wood. AC Detection: stanley fatmax stud finder 400 manual
: An integrated channel at the top of the device allows for accurate marking of results directly on the wall. : Move the unit in a "Z" pattern across the wall surface
: When the device detects the edge of a stud, it will beep or light up. it will beep or light up.