Surface moisture, static electricity, or textured walls (like popcorn surfaces or heavy troweled plaster) can interfere with capacitive sensors.
Backlit visual display showing center detection, stud edges, and battery status. stanley fatmax stud finder 400 manual
The FatMax 400 features a toggle button to switch between scanning depths. For standard drywall up to 34three-fourths inch thick. stanley fatmax stud finder 400 manual