Bosch GMS120 Digital Wall Scanner Product Code: 76455

Multifunction wall scanner for the detection of studs, copper pipe, metal pipe and live wires.


  • 3 x Detection Modes
  • Detection Depth 3.8-12cm
  • Centre Finder Function
  • 3 Year Manufacturer's Guarantee
  • LED Marking Hole
  • Colour-Coded Indicators
  • Automatic Calibration


Calibration-free. Max. detection depth: stud 3.8cm, copper pipe 8cm, metal pipe 12cm and live wire 5cm. L x W x H: 220 x 97 x 120mm. 4 x 1.5V batteries included.
Additional Information
Technical Specification
  • Brand : Bosch
  • Total Product Weight : 0.7 kg
  • Model No : GMS120
  • Pack Size : 1
  • Manufacturer Guarantee : 3 Year Manufacturer’s Guarantee (Registration Required, T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


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€93.95 Incl. 23% VAT

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Bosch GMS120 Digital Wall Scanner is rated 2.8 out of 5 by 21.
Rated 1 out of 5 by from Money back please. Bought this unit purely for finding studding in a Georgian property. Totally ineffective, giving a myriad of false readings and unable to detect studwork on newly built walls with 12mm plaster board and only 2mm of plaster skim. I have spent 5 minutes trying to make it detect a stud which I knew the position of ! Absolutely useless, and unexpected from Bosch, I will be seeking a full refund.
Date published: 2018-03-09
Rated 1 out of 5 by from Bosch GMS120 Scanner Straight out the box I tested it on known locations of studs and wiring, was unable to locate anything consistently or accurately. The metal function worked ok. Overall it doesn't work any better than the cheap equivalent I already own. Returned for a refund
Date published: 2018-02-24
Rated 5 out of 5 by from Very Good Device If you ignore the Bosch multilanguage instructions which make no sense then this product is very easy to use
Date published: 2017-11-28
Rated 1 out of 5 by from not happy at all this item didnt find a live cable 22mm below a plaster wall. hence i took it back. also the battery that came with the item over heated in my pocket to a point i couldnt hold it. i buy allot of bosch gear this to be fair is the first time im not happy with the kit
Date published: 2017-01-04
Rated 4 out of 5 by from Office move, life saver. Moving into a new office, always a chore to find the studs to hang TV's. Worked even through ply backed plasterboard, and alerted us to a rogue lighting cable loop.
Date published: 2017-01-03
Rated 1 out of 5 by from Huge waste of money. This 3 function tool fails on all 3 functions. The LCD display is invisible when the tool is raised above eye level. The stud detector is very uncertain and the live wire function over-rides all other functions. Hard pads on face of detector left marks on emulsion wall. I tried to master it for 4 days then took it back for a refund. BOSCH should rethink the whole thing.
Date published: 2016-11-17
Rated 1 out of 5 by from Awful As a keen DIYer in a new house I thought this would save me lots of time locating studs and existing wires/pipes. It, however, cost me lots of time as it gives so many false positive readings I had to check with more conventionaly methods anyway. When it failed to find a live wire that I knew was there it immediately became an expensive paperweight. Waste of money.
Date published: 2016-06-01
Rated 5 out of 5 by from Tickety Boo Tool Bought this to find cables and studs in a wall, had no problems at all. Detected cables 50mm under insulation board. Simple controls and a clear intuitive display. Bosch Professional quality and Screwfix service, a cracking match.
Date published: 2015-12-01
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