Stanley Fatmax Stud Finder 400 Manual Verified Link Page

The Stanley FatMax Stud Sensor 400 (model 77-730) is a high-performance tool designed to accurately locate wood and metal studs, as well as live AC wiring behind walls. This guide provides a comprehensive overview of its features and verified operating instructions to ensure precision in your DIY or professional projects.

A user approaches a wall to hang a TV. They switch the FatMax 400 on, and the "Ready" LED turns green instantly—no holding down buttons. As they slide the tool across the surface, the display shows a clear, full-color visual representation of the stud edges. Suddenly, the device emits a distinct chirp and the display flashes red, indicating a live wire running vertically behind the drywall, allowing the user to adjust their mount location safely. stanley fatmax stud finder 400 manual verified