400 Manual High Quality — Stanley Fatmax Stud Finder

: Hold the device flat against the wall, away from known studs or metal. : Press and

The Stanley FatMax Stud Finder 400 (77-730) is an electronic tool designed for precise detection of wood and metal studs up to 1.5 inches deep, featuring live AC detection up to 2 inches. Proper operation requires calibrating the tool on a flat surface away from studs and scanning slowly, with a "CENTER" indicator and audio alert identifying structural supports. For the full digital manual, visit Stanley Support Page . 77-730 FatMax Stud Sensor Instruction Manual stanley fatmax stud finder 400 manual

due to a software error that could cause improper calibration, potentially failing to detect live AC wires. STANLEY® Tools How to Check : Open the battery cover. Safe Units : If there is a date code beginning with an , the unit is not affected. Recalled Units : If there is , the unit may be defective. Users are advised to contact Stanley customer support Stanley Tools Support for a replacement. STANLEY® Tools Troubleshooting Tips How To Use a Stanley Stud Finder 16 Oct 2025 — : Hold the device flat against the wall,