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C.H. Hanson 3040 Magnetic Stud Finder

Model: 3040 · US configuration

C.H. Hanson model 3040 yellow-and-black magnetic stud finder with a central bubble vial and lower hanging feature.
Official C.H. Hanson manufacturer image for model 3040; a product reference, not a test photograph.

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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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Why consider this model?

  • 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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Manufacturer information