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BOSCH

Bosch GMS120 Digital Multi-Scanner with Modes for Wood, Metal, and Live Wiring

    • Based on 3,563 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Apr 27
Order within 8 hours and 53 minutes
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Style: Multi-Scanner


Features

  • Detection: The Bosch GMS120 Digital Wall Scanner features multi-mode laser detection for wood studs, metal objects (rebar, studs and steel/copper pipes) and live wiring
  • Performance: Features the latest 3 sensor laser technology, offering a wide range of detection performance of up to 4 3/4 inches deep in cured concrete, up to 2 inches for live wiring, up to 3 1/8 inches for copper and up to 1 1/2 inches for wood studs; The accuracy of the product is 0.0625
  • Self calibrating: Includes 3 selection modes for wood, metal, and AC wiring; The GMS120 offers automatic calibration from the start and continues to self calibrate through the course of the project for easy and precise detection
  • Display: Features an illuminated graphical LCD display to indicate mode, detection strength, and more; The large detection ring flashes green for no object found, orange for object near and red for object found within the sensor range
  • Center Finder: This wall scanner includes a center finder that pinpoints the object center with an audible detection signal with an on/off button

Description

The BOSCH line of countersinks are great for deburring and chamfering openings to pre-drilled holes. Great for electrical, plumbing and HVAC contractors. BOSCH countersinks cut varied materials cleanly and accurately. With standard high-speed steel and super hard titanium-coated bits, these countersinks perform great in even the toughest materials. Bosch’s GMS120 digital multi-scanner provides detection of multiple materials, including wood, metal, and live wiring. Because of its versatility and consistent performance, it’s an ideal tool for construction, electricians, contractors, carpenters, masons, plumbers, and others who need reliable detection. GMS120 Digital Multi-Scanner At a Glance: Three available modes: wood, metal, wiring Automatic calibration, automatic center finder Detect steel at up to 4-3/4-inches deep in concrete Illuminated display for mode, detection strength, and more Audible detection signal with an on/off button Bosch’s GMS120 digital multi-scanner has three detection modes and a bright LCD display (view larger.) Consistent Material Coverage With its three modes, Bosch’s GMS120 digital multi-scanner is an aid in most situations, as its modes cover wood studs, metal objects such as rebar, studs, and steel/copper pipes, and live wiring. It has precise automatic calibration that makes use easier and an automatic center finder, which pinpoints the center spot of the wood or material that has been detected. Deep Detection The GMS120 has a deep metal detection feature, which allows a user to detect steel that is placed up to 4-3/4-inches (120 mm) deep in cured concrete. It has a maximum detection depth of up to 2 inches for live wiring, up to 3-1/8 inches for copper, and up to 1-1/2 inches for wood studs. User-Friendly Features Bosch’s GMS120 digital multi-scanner provides an illuminated ring that indicates detection status and an audible detection signal with an on/off button. Adding to the user-focused design, its bright and readable illuminated graphical LCD display indicates mode, detection strength, and more, making it simple to check the detection device and switch modes and tasks. In addition, its ergonomic soft-grip provides a comfortable grip that’s secure and safe. Dimensions and Warranty The Bosch GMS120 digital multi-scanner measures 10-1/4 inches by 3 inches by 6-1/2 inches and weighs .6 pounds. It comes with a two-year warranty. What's in the Box One Bosch GMS120 digital multi-scanner, hand strap, one 9-volt battery, and carrying pouch. Bosch’s GMS120 digital multi-scanner detects multiple materials, has a user-friendly design, and easy detection status checking (click each to enlarge). P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer Bosch GMS 120 professional multi material cable detector, complete with protective bag. The most convenient multi-functional scanner for construction applications. Includes: hand strap, (1) 9-Volt battery and carrying case. See more


Brand: BOSCH


Model Name: GMS120


Item Dimensions LxWxH: 9.84 x 5.91 x 1.97 inches


Resolution: 600


Item Weight: 0.5 Kilograms


Optical Sensor Technology: CMOS


Product Dimensions: 6.5"D x 10.25"W x 3"H


Manufacturer: ‎Bosch


Part Number: ‎GMS 120


Item Weight: ‎1.1 pounds


Product Dimensions: ‎9.84 x 5.91 x 1.97 inches


Country of Origin: ‎Malaysia


Item model number: ‎GMS 120


Batteries: ‎1 9V batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎Pack of 1


Color: ‎Blue


Style: ‎Multi-Scanner


Material: ‎metal


Power Source: ‎Battery Powered


Voltage: ‎9 Volts


Item Package Quantity: ‎1


Measurement System: ‎Metric


Included Components: ‎Unit^Instruction Guide


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Battery Cell Type: ‎Alkaline


Warranty Description: ‎30-day money back guarantee, 1 yr warranty


Date First Available: April 5, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Accurate, but with marginal audio signal
Style: Multi-Scanner
Excellent and accurate wall scanner. Does locate studs, metal, electrical accurately. I have checked accuracy with two other also excellent scanners, so the confidence in the accuracy of the unit is high. There is a visual display and an audio signal designed to alert to the center of the stud, however, the audio signal seems to be designed for a cat rather than a somewhat aging human. You may need to relay on the visual cues, or use some electronic enhancement for your hearing. Maybe a trained dog ? ... show more
Reviewed in the United States 🇺🇸 on May 10, 2023 by Dr Dave
    • Good product - shipped without package box
Style: Multi-Scanner
Review Image by macjohnw macjohnw
Seems like a good product - played around with it. However, it shipped without being packaged. They simply slapped a sticker on the item's box and shipped it.
Reviewed in the United States 🇺🇸 on May 12, 2023 by macjohnw macjohnw
    • BOSCH GMS 120 Stud-Finder
Style: Multi-Scanner
A simple magnet has served me well as a studfinder for years. Anticipating an install of a floating shelf bearing 100 Lbs ... priority was to hit center-stud as much as possible and also avoid electrical wires with the 2 1/2" screws. Have so much appreciation for the Bosch tools I've accumulated over the years that with Bosch offering a studfinder that was all the research I needed. My drywall is light to medium textured. For studs the GMS 120 gave me different center-points for the same stud with variations of up to 3/4 of an inch, and so this was only slightly helpful towards my desire to confidently locate the center of the stud. As far as finding live wires, I get the impression from reviews that there doesn't seem to be any manufacturer making a studfinder that reliably locates live wires, at least for under $300, and that at least for me was true with the GMS 120. It indicated a broad proximity of live wire but only very broad. On same day I received the Bosch and found it lacking, I headed on over to H.D. and based on favorable reviews picked up a Franklin M210 studfinder. Very favorable experience and felt it gave me a better indication of the studs true center-point, and same for locating live wires. Not returning the Bosch as it is a good tool, and using it along with the Franklin M210 cross-checking the other I did finally feel I have a good idea where the live wires are located. Again neither of these studfinders excelled at finding live wires in my opinion but it can be done. Ended up being confident that the horizontal run of the elec. cable was located in the wall between 18" and 26" off the floor ... good enough, but between using both of these two higher cost studfinders I thought I'd achieve more specific results. So in my particular case with my textured walls the Bosch GMS 120 performed acceptably and with patience got the job done. So now I've got both the Bosch and the Franklin to use in tandem for next time. However if I could only use one of these two, it would be the Franklin M210. ... show more
Reviewed in the United States 🇺🇸 on August 24, 2022 by monsenor
    • Works great
Style: Multi-Scanner
Works as advertised so far very simple to use. Only had it for a short time we'll see how it holds up
Reviewed in the United States 🇺🇸 on May 16, 2023 by Adam
    • Terrible on wiring
Style: Multi-Scanner
Would not recommend this product for finding electrical wiring in a wall. Did not work at all on electrical wiring.
Reviewed in the United States 🇺🇸 on March 21, 2023 by Keith E. Brown
    • Really hoping this would have been better...
Style: Multi-Scanner
Gosh, I'm on the fence with this unit, and disappointed in myself that I jumped the gun before the Amazon reviews were in. If you buy this unit, by all means purchase from Amazon or another reputable retailer with a good return policy in the event you are not satisfied with its performance. I'm reserving the right to upgrade this 3-star "It's OK" review at a later date, but for now (after a couple weeks of ownership), this is where I'm calling it. I bought the GMS120 to replace a couple of older Zircon units that proved OK on drywall over fir framing, but I've moved to a more challenging climate of plaster walls, some with wire mesh. But first, on drywall, the unit has been hit or miss. I broke it in on a wall that's open on the back side (so the framing is exposed), and I'm not getting the precision I've come to expect with the center-finding Zircon unit I own (which has also been hit-or-miss). Where the Zircon projected a finely focused LED beam along the calculated stud center, this Bosch unit gives a LCD "bar graph" display plus a 1/2" wide lighted circle that changes from red to yellow to green -- so the user is responsible for tracing a circle, or drawing a crosshair inside the circle, to note this location. The indicated center of the stud is often not repeatable, so it takes a number of back-and-forth scans to get a good feel for where I should be drilling. And on the drywall over metal stud walls at work -- big disappointment; no usable readings. On plaster, I've been confounded by this unit's inability to locate a stud correctly. The instructions recommend placing paper or thin cardboard backing behind the sensor to assist with the uneven thickness / density of plaster walls, but the 1/4" lath appears to be too much to overcome. Never mind when chicken wire is in the mix. I'm going to keep playing with this and find a hopeful solution, as according to the reviews out of various European publications I've read, this shouldn't present an insurmountable challenge. Worse yet, the current sensing function seems to be entirely non-functional. I've traced over known, energized wire locations with nary a *beep* from the scanner. Another reviewer states that this current sensing function is active in the wood scanning mode (I stated contrary previously and stand corrected), but I've yet to receive an accurate current warning from this scanner, regardless of mode selection). If I recall correctly, the Zircon stud finder sensed electrical current when in stud finding mode, so where two passes are required with the Bosch, the Zircon would somewhat reliably call out a live wire while in the process of scanning for studs. This function works if I place the sensor directly on live Romex or even a power cord plugged into a wall socket, but once drywall is sandwiched in the middle, readings disappear. And the LCD display... what was Bosch thinking? There's a lot of info on the display, and it's backlit (user selectable on/off -- yay!!) but the viewing angle turns to zero if I hold the scanner just a FEW INCHES below eye level -- ZERO, as in INVISIBLE -- it appears the thing powered off. Higher than eye level, no problem, but lower -- even with the backlight on, it's completely unreadable. Seriously, Bosch? This may not sound like a big deal, but consider for a moment how you hold your arm while using one of these gizmos. I can't speak for the wider user base, but I feel most natural / comfortable with it at chest / neck height, exactly where the display goes blank. The scanner comes with a rather thorough multi-language instruction manual, which shouldn't be necessary for something so simple. Nevertheless, it's true to Bosch's tradition and appreciated. It also comes with a tight fitting canvas-style case which truly could be just a tad bigger. I'm holding out hope that I'm missing something important here and I'll grow to love this unit, based not only on Bosch's reputation, but on the stellar reviews I've read in various trade mags. Honestly, I'm not seeing this as being any better than the scanners available from Zircon, and the half-viewable LCD display is an absolute disappointment. My last stud finder purchase was 6+ years ago, and after reading some great "pro" reviews about this unit, I was fully expecting that the state of the technology had greatly advanced versus the Zircon that was already in my tool bag -- especially coming from Bosch! I'm in the process of contacting Bosch customer service to see if perhaps I have a lemon, because again, my experience has been nothing like the reviews I've read proclaiming the GMS120 to be the best in class. ... show more
Reviewed in the United States 🇺🇸 on May 26, 2011 by Nathaniel Allen

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