: Keep the device still until you hear a final beep or see the "READY" icon. Calibration typically takes 1–3 seconds. How to Find Studs Once calibrated, you can begin your scan.
: 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. stanley fatmax stud finder 400 manual
: With the button still held down, slide the device horizontally across the wall. Moving too fast can lead to inaccurate readings. : Keep the device still until you hear
Before scanning, your device must be calibrated to the specific density of your wall surface. : Press and hold the activation button on the side
: Open the rear compartment and connect a fresh 9-volt alkaline battery .
using the integrated marking channel at the top of the device.
: When the device detects the edge of a stud, it will beep or light up.