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Internet # 202850662

Model # GMS120

Digital Wall Scanner with Modes for Wood, Metal, and AC Wiring

$79.00
$99.97
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  • Illuminated ring indicates detection status
  • Metal detection detects steel up to 4-3/4 in. deep in concrete
  • Detects studs, metal objects (rebar, metal pipes) and live wiring
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Product Details

About This Product

The New Bosch GMS120 Wall Scanner features Multi-Mode Detection-For wood studs, metal objects (rebar, studs and steel/copper pipes) and live wiring. Illuminated Graphical LCD Display-Indicates mode, detection strength and more. Deep Metal Detection Capability-Detects steel up to 4-3/4 in. (120 mm) deep in cured concrete. Automatic Center Finder-For locating center of detected wood or metal object. 3 Selection Modes (Wood, Metal, AC Wiring) with automatic calibration for easy and precise detection. Audible Detection Signal-With On/Off button. Ergonomic Soft-Grip-For secure grip and comfort. Illuminated ring indicates detection status.

Highlights

Product Information

Internet # 202850662

Model # GMS120

Additional Resources

Shop All Bosch

Specifications

Dimensions: H 3 in, W 6.5 in, D 10.25 in

Dimensions

Product Depth (in.)10.25 inProduct Height (in.)3 in
Product Width (in.)6.5 in

Details

Audio alertYesBatteries IncludedYes
Battery Type Required9-voltDetects metalYes
Detects voltageYesDigital DisplayYes
FeaturesDigital, Electronic, LED DisplayHand Tool TypeStud Sensor
Laser level includedNoMaximum wall thickness (in.)4.75
Number of Batteries Required1ReconditionedNo
Returnable90-DayTools Product TypeHand Tool

Warranty / Certifications

Manufacturer WarrantyBosch measuring and layout tools are covered by a one year limited warranty with an additional year when you register your tool within eight weeks of purchase - for details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99

Questions & Answers

34Questions
caret
Q:Does it scan and detect through wood tongue and groove wall paneling? Previous answers to this question were not answered. Answer was cut and paste from the online description of the product! Didn’t answer the question clearly! So please!
by|Nov 23, 2023
1 Answer
Answer This Question

A:  Thank you for your question. The GMS120 Scanner is designed to detect wood studs, metal objects (rebar, studs, and steel/copper pipes), or live wiring at a maximum depth of 4-3/4" for ferrous metal and 3-1/3" for non-ferrous metal. The wood-detection mode actually detects more than just wood substructures (studs and joists). It may also detect metal and other dense materials, such as water-filled pipes. For further assistance, you may email us at bosch.tools@us.bosch.com or contact us at 1-877-BOSCH99 (1-877-267-2499) from Monday through Friday, 7 a.m. to 7 p.m. CST.

by|Dec 1, 2023
    caret
    Q:Do this stud finder find wood joists behind wood walls
    by|Oct 25, 2023
    1 Answer
    Answer This Question

    A:  Thank you for your question. The GMS120 Scanner is designed to detect wood studs, metal objects (rebar, studs, and steel/copper pipes), or live wiring at a maximum depth of 4-3/4" for ferrous metal and 3-1/3" for non-ferrous metal. The wood-detection mode actually detects more than just wood substructures (studs and joists). It may also detect metal and other dense materials, such as water-filled pipes. For further assistance, you may email us at boschtools@custhelp.com or contact us at 1-877-BOSCH99 (1-877-267-2499) from Monday through Friday, 7 a.m. to 7 p.m. CST.

    by|Nov 2, 2023
      caret
      Q:Will this stud finder work through stucco on outside walls???
      by|Aug 15, 2023
      1 Answer
      Answer This Question

      A:  The GMS120 should read through stucco, however, you would need to have a flat surface for the unit to glide along for an accurate reading. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7AM-7PM CST.

      by|Aug 25, 2023
        caret
        Q:Will this tool locate wooden studs behind hardiplank exterior siding (Yes/No)?
        by|Jun 24, 2023
        1 Answer
        Answer This Question

        A:  The measuring tool is intended for the detection of objects in walls, ceilings and floors. Depending on the material and condition of the base material, it is possible to detect metal objects, joists, water-filled plastic pipes, conductors and cables. The detector’s ability to detect wood substructures (studs) is also affected by inconsistency on the thickness of the surface material, such as plaster and lath. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7AM-7PM CST.

        by|Jun 28, 2023
          Showing 1-4 of 34

          Customer Reviews

          3.1 out of 5
          • 3.1 out of 258 reviews
          • 49% recommend this product
          Filter by:
          Showing 1-10 of 258 reviews
          Waste of money
          Over priced and cannot find a stud. Don't waste your time. Do not buy this. I followed the instructions to the "T" and does not work
          by
          Response from BoschToolsMay 20, 2021
          Thank you for your recent post on the Homedepot.com website. We are sorry to hear that you are having an issue with the Detection Tool not working properly. Home Depot is focused on ensuring complete customer satisfaction. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Please contact our Laser and Measuring Tool Technicians at 1-800-346-4103, we can further discuss and troubleshoot the issue you are having with the multi detector and if there is an issue we can also assist with warranty information. You may also return the scanner back to the store within 30 days from the purchased date. Thank you for your time.
            I does work but i thought it was going to be the real deal. For the price. Unfortunately it doe...
            I does work but i thought it was going to be the real deal. For the price. Unfortunately it doesn't but I will keep it because it its better than others
            by
            Response from BoschToolsApr 21, 2020
            "We appreciate you taking the time to write a review about the GMS120. Rest assured, we'll have all your comments about the item forwarded to our product team for an item review and future enhancements. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.
            "
            • Verified Purchase
            • Recommended
            This easy-to-use stud/metal/wire finder is great for the thick drywall/plaster in my house and wo...
            This easy-to-use stud/metal/wire finder is great for the thick drywall/plaster in my house and works much better than the cheaper electronic ones I have used in the past. At the end of this review is a link to a demonstration video I made. Most of my 1950s home's walls have drywall coated in plaster and are about 1" thick is most spots so non-electronic and electronic stud finders never worked too well. Remodeled areas of my home also have the standard 5/8" or 1/2" thick drywall and 3/4" thick wood paneling which I use this mostly successfully on. I also used this successfully to detect copper and galvanized pipes behind cement board/tile and to find rebar in cement. It can detect steel as deep as 4.75" in the wall, wood up to 1.5" and wires up to 2". Using it around the house, I find it works better in the thick walls and wood paneling, especially for finding live wires. In the standard thickness drywalled walls, it does not find electrical wires well but it does find studs and plumbing well. The only downside to this detector is I cannot get it to consistently find electric wires behind 1/2" or 5/8" drywall which is standard on most homes. In most cases, it will not detect them at all but does give a reading sometimes. This is probably due to the finder only being able to detect wires up to 2" deep in the wall. Sometimes wires are not within 2" of the drywall surface. It also cannot detect studs well behind wood paneling which is not surprising. I find it pretty user-friendly, just turn it on, set your mode (wood, metal, electrical) then place it on the wall and give it a second to calibrate. Afterwards, start searching. It will alert you to whatever mode you have it set on with a bar gauge. When you have it on wood mode, it will also alert you to metal and wires which is convenient. It makes noises as you get closer (you can turn the sound off, it is a bit irritating). When you find the center of a stud, pipe or wire, the finder has a convenient holes you can stick a pencil through the mark it. It seems to find wood with the assistance of finding screws/nails and overall, I find its best to scan up and down to find the exact position of the stud, pipe or wire. You probably wont get the exact location on the first bullseye. The finder also has a backlight for the screen when using in dark areas. The finder comes with a 9v battery, carrying case and directions as well. The directions take a little reading. Overall, this is great for finding studs and pipes but 4/5 stars for the general inability to find electrical behind standard thickness drywall. 5 stars for versatility and ease of use. I thought about knocking it down a star for general failure to detect wiring but its scan range for wiring is limited as stated. Overview and demonstration: https://youtu.be/nlW0wfVhoVo
            by
            • Recommended
            9 found this review helpful
            Works good for wood, not so much for electrical.
            I had just remodeled my bathroom so I knew where all the studs and electrical was located. It worked great to find the studs. The display showed where the center was clearly. It even has a hole to mark on the wall. But I tried the electrical setting and it found the live wires sometimes and sometimes not. I even tried it over exposed wires and it didn't sound off. Overall, it worked great for wood, not so great for electrical. I didn't have an occasion to try it on steel setting.
            by
            • Recommended
            6 found this review helpful
            Quality Wall Scanner
            I was frustrated buying cheap, throw-away stud finders that never seem to work when you need one, so I stepped up to the Bosch GMS120 Professional Wall Scanner. It comes with a nice flexible storage case with hand lanyard and belt loop. Using this wall scanner is not intuitive and requires reading the instructions thoroughly. There are multi-colored flashing lights, changing bar graphs, symbols and sounds that requires prior working knowledge to use properly. The instruction pamphlet would benefit from better graphics and illustrations. The scanner has three modes; wood, metal or live electrical. In the wood mode it actually scans for all three, and will display the various signals and graphs on the display. It also identifies the center point of wood studs or metal objects. Selecting metal mode excludes wood and scans for only ferrous/non ferrous metals and “live” electrical wires. It is important to note that the scanner detects wires where current is flowing. The warning light may not flash for wires that have no current draw. The Bosch GMS120 performed very well in all three modes during my testing and use. As recommended in the instructions, I used a thin piece of cardboard over the uneven ceiling texture, and it detected the joists perfectly. Now I don’t have to drill and patch holes in the ceiling when looking for the joists. The scanner could be more user friendly with better graphics in the display, but it’s still a giant leap above the cheap stud finders.
            by
            • DIY
            • Recommended
            34 found this review helpful
            by
            • Verified Purchase
            Doesn’t work at all
            I bought this recently and it straight up doesn’t work.
            by
            Response from Bosch Tools Customer SupportFeb 6, 2024
            Hi! We appreciate your rating and review. We apologize for the experience that you had with the GMS120. It is necessary to calibrate the tool to the scanning surface prior to taking the measurements. It is recommended to move the device slowly back and forth from left to right 3–4 times for calibration and then to proceed with the measurement. The tool has to become acquainted with the surface it is scanning. If you need further assistance, you may email us at bosch.tools@us.bosch.com or contact us at 1-877-BOSCH99 (1-877-267-2499) from Monday through Friday, 7 a.m. to 7 p.m. CST.
              by
              • Verified Purchase
              by
              • Verified Purchase
              Easy to use, effective. Great buy.
              This is an excellent tool, and works really well. There's a bit of a learning curve to get used to pausing for the time it takes the tool to process whatever it's sensing. But I wouldn't say it's slow. There's just a bit of a rhythm to your pace when you're moving across the surface to see what's behind it.
              by
                • Recommended
                Showing 1-10 of 258 reviews