Bosch GMS120-27 wall scanner front view for professional detection
Bosch GMS120-27 display shows clear interface for quick material ID
Bosch GMS120-27 color marking ring facilitates fast result transfer
Bosch GMS120-27 IP54 durable casing withstands dusty and wet jobsites
Bosch GMS120-27 dual-power option keeps work uninterrupted
Bosch GMS120-27 live wire detection guides safe wiring behind walls
Bosch GMS120-27 stud center detection supports precise drilling
Bosch GMS120-27 metal and pipe detection informs layout planning
Bosch GMS120-27 included soft pouch keeps tools organized

Bosch

Bosch GMS120-27 Professional Wall Scanner — Multi-Function Stud Finder & Live Wire Detector

High-performance tools and home improvement made for confident daily results

$108.48

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Why customers choose TaskHolt Tools

Overview

The Bosch GMS120-27 wall scanner is a professional grade tool that helps you see what lies behind drywall. It detects wood studs, metal framing, copper pipes, and live electrical wiring, delivering clear feedback through a graphical display and a center indicator ring. By translating detection into actionable marks, you can plan with confidence before drilling, mounting, or routing cables.

Pro-grade multi-function detection

  • Accurately locates wood studs and metal framing behind walls to guide precise cuts and placements.
  • Identifies copper pipes and live AC wiring to reduce the risk of costly repairs or sparks.
  • Offers material identification and center positioning via an easy to read display for fast decisions on site.

On-site durability and reliability

Built for tough jobs, the device features an IP54 rated body and a shock absorbing rubber shell. This rugged design helps it withstand dust, splashes, and daily wear on job sites, garages, or workshops.

  • Rugged construction minimizes downtime and protects sensitive electronics.
  • Color coded marking ring makes it quick to transfer results to the work surface for faster layout.

Power that keeps you moving

Two power options provide flexibility on a busy day. Use the included AA batteries for immediate use, or pair with a 3.7V Li-Ion battery (sold separately) for extended, rechargeable performance without interrupting workflow.

Real-world use cases

Electricians, plumbers, remodelers, and installers appreciate the tool for multi material detection and prompt feedback. Glide the scanner across drywall to reveal stud centers, avoid hidden hazards, and mark safe zones before drilling or mounting fixtures.

What’s included and warranty

  • GMS120-27 Wall Scanner
  • Two AA batteries for immediate power
  • Protective soft pouch

Bosch provides a one year limited warranty with an option for extended coverage when registered. This adds reassurance for frequent use on professional projects.

FAQ

Q: What does the Bosch GMS120-27 detect behind walls?

A: It identifies wood and metal studs, copper pipes, and live electrical wiring with clear center and material feedback.

Q: What’s included in the kit and how does power work?

A: The kit includes the scanner, two AA batteries, and a soft pouch; it can use AA power or an optional 3.7V Li-Ion battery.

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