Stanley Fatmax Stud Finder 400 Manual | Recent & Authentic

The #1 complaint online about the FatMax 400 is "It won't stop beeping." Here is the manual's troubleshooting guide:

While the official Stanley manual covers basics, experienced DIYers use these hacks: stanley fatmax stud finder 400 manual

Before scanning, the device must "learn" the density of your wall. Place the stud finder flat against the wall in a spot where you suspect there are hold the activation button on the side of the unit. The #1 complaint online about the FatMax 400