Verified — Stanley Fatmax Stud Finder 400 Manual

When the appears and a constant tone sounds, you have found the center.

A "Low Battery" icon will appear on the LCD when it is time for a replacement.

Includes dedicated modes for wood studs, metal scanning (up to 3 inches deep), and AC tracking to avoid live electrical wires. stanley fatmax stud finder 400 manual verified

Unlike basic models that only find edges, this sensor uses electronic signals to pinpoint the exact center of a stud in a single pass.

Sounds distinct tones when it successfully calibrates and when it reaches the center of a stud. Operating Instructions (Verified Manual Steps) 1. Preparation and Battery Installation Open the battery compartment on the back of the unit. When the appears and a constant tone sounds,

The unit will emit a series of tones as it calibrates to the wall's density.

Note: If you calibrate directly over a stud, the unit may not function correctly. Move it a few inches and recalibrate if you get no readings. Unlike basic models that only find edges, this

Wait for the to appear and a final beep before moving the device.

Provides clear visual feedback on the tool's readings, even in low-light environments.

As you approach a stud, the LCD will show its relative position.