Bosch GMS 120 Professional
Multi detector
The Bosch GMS 120 Professional is a multi detector for metal, timber studs and live wiring — the everyday instrument for checking a wall before drilling, rather than a specialist concrete scanner.
| Brand | Bosch |
|---|---|
| Product type | Multi detector |
| Chemistry | Inductive and capacitive detection |
| Supplied as | Battery powered handheld |
| Substrates | Masonry, Drywall, Timber, RCC |
| Applications | Walls, Concrete |
| Pack size & coverage | Per the manufacturer’s current data sheet — ask us for the TDS |
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Product description
Leakproofs by Betterwork specifies and applies Bosch GMS 120 Professional as part of a complete waterproofing system. A material on its own does not stop a leak — what stops it is the right material chosen for the right defect, on a surface that has been properly prepared. That is why we deep-scan before we specify.
Where Bosch GMS 120 Professional is used
This product is specified for walls, concrete.
- Checking for live cabling before fixing or chasing
- Locating studs and joists in partition construction
- Finding ferrous and non-ferrous metal near the surface
- General safety checks before drilling in occupied buildings
Suitable substrates: Masonry, Drywall, Timber, RCC.
How it is applied
Calibrated against a clear area of the same wall, then moved slowly across the surface with findings marked. It reads near-surface objects, so on structural concrete a radar scanner is the correct instrument instead.
Preparation is the part that decides whether the system lasts. Loose material and failed old coatings are removed, cracks are cut and filled, and the surface is cleaned and brought to the moisture condition the product requires before anything is applied. Skipping that stage is the single most common reason waterproofing fails in its first season, whichever brand is on the tin.
Key properties
- Detects metal, timber and live wiring
- Simple to operate with minimal setup
- Inexpensive safety check before drilling
- Compact enough to carry on every visit
- Near-surface detection only — not a substitute for radar on concrete
Technical data
Pack sizes, coverage, cure times, colours and current pricing for Bosch GMS 120 Professional are taken from the manufacturer’s current technical data sheet.
Formulations, pack sizes and regional availability change, so we quote against the data sheet in force on the day rather than a figure copied from a website. Ask us for the current TDS and SDS for this product and we will send them with your estimate.
Related waterproofing services
We apply Bosch GMS 120 Professional as part of the following services:
Free inspection & written estimate
Get Bosch GMS 120 Professional specified for your building
Book a free deep-scan inspection. We identify what is actually causing the leak, then recommend the material system that fits — with a fixed written estimate before any work begins.
Bosch and its product names are trademarks of their respective owner. Bosch tools are equipment we use on site. We are not a Bosch dealer, and links to buy them go to Amazon. Product information on this page is provided to help you choose a system; always refer to the manufacturer’s current technical data sheet before use.
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