Stanley Fatmax Stud Finder 400 Manual ((link)) Online

When you reach the exact center of the stud, the top or arrow icon will illuminate, and a steady tone will sound.

Ensure you are using a double‑click and hold motion, not a single press. If the icon does not appear, release the button and try again. Also check that the battery is not low, as low voltage can prevent mode switching. stanley fatmax stud finder 400 manual

The Stanley FatMax 400 has two main functions: standard stud detection and a dedicated for finding live electrical wires. This is a crucial safety feature that helps you avoid drilling into a live wire. When you reach the exact center of the

Technical Specs (typical):

To preserve battery life, the device turns itself off automatically after a period of inactivity. This is especially helpful if you occasionally forget to power down after a project. Also check that the battery is not low,

You accidentally calibrated the device directly over a wall stud, a metal pipe, or a thick piece of framework.