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Bosch GMS120-27

Model: GMS120-27 · US configuration

Bosch GMS120-27 compact wall scanner shown with its soft pouch and two AA cells.
Manufacturer image showing the GMS120-27, pouch and two AA cells; not a test photograph.

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A two-function wall scanner that combines automatic metal/live-cable detection with a separate wood-in-drywall setting; its 30 mm wood-beam limit is lower than the older GMS 120's.

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Why consider this model?

  • A compact wall-scanner option for dry drywall when a center cue, automatic metal/live-cable indication and optional wood-beam mode matter, and the qualified 30 mm wood-beam ceiling is enough.

Tradeoffs to weigh

  • Its 30 mm wood-beam limit is lower than the older GMS 120's 38 mm figure and is qualified for a particular beam and plasterboard thickness. It provides a center cue rather than a separately documented stud-edge display; the 3.7 V Li-ion pack is optional, not in the listed U.S. package.
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