: Press and hold the activation button on the side. The device will emit a series of tones or show a "CALIBRATING" message on the LCD.
to find the other edge of the stud and mark it. stanley fatmax stud finder 400 manual
Before scanning, your device must be calibrated to the specific density of your wall surface. : Press and hold the activation button on the side
: When the device detects the edge of a stud, it will beep or light up. stanley fatmax stud finder 400 manual
: Open the rear compartment and connect a fresh 9-volt alkaline battery .
using the integrated marking channel at the top of the device.