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C.H. Hanson 3040 Magnetic Stud Finder
Model: 3040 · US configuration
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A battery-free rare-earth magnet finder for locating likely drywall fastener points, with a rotating level for layout; the reviewed maker sources give no numeric stud-depth limit.
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- A battery-free manual option when locating a likely drywall fastener point and aligning a horizontal or vertical mark matter more than electronic boundary cues.
Tradeoffs to weigh
- It locates ferrous fasteners rather than wood density, has no documented numeric stud-depth figure or electronic center/edge display, and the reviewed sources list no live-wire warning function.
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