Stanley Fatmax Stud Finder 400 Manual Verified [hot] [TRUSTED]

Place the unit flat against the wall where you know there is . Press and hold the activation button .

Dust, drywall mud, and paint buildup on the sensor plate (the smooth white part on the back) will ruin accuracy. Wipe with a dry microfiber cloth. Never use solvents or wet wipes. stanley fatmax stud finder 400 manual verified