








📡 See through walls like a pro—because guessing is so last decade.
The BOSCH D-TECT120 is a professional-grade wall and floor scanner featuring instant radar detection technology that requires no calibration. It offers three dedicated modes—drywall, universal, and concrete—to accurately locate wood studs, metal framing, plastic pipes, and live wiring through multiple materials. Its intuitive traffic light interface provides clear visual and audio alerts, while its ergonomic, durable design ensures reliable performance on any jobsite. The kit includes the scanner, four AA batteries, and a hard carrying case, backed by Bosch’s industry-leading warranty.












| ASIN | B00SWIHA1E |
| Batteries | 4 AA batteries required. |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #434,823 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #721 in Multi Testers |
| Brand | Bosch |
| Color | Bosch Blue |
| Customer Reviews | 4.0 4.0 out of 5 stars (278) |
| Date First Available | January 26, 2015 |
| Finish | Brushed |
| Global Trade Identification Number | 00000346466720 |
| Included Components | (1) D-TECT120 Wall/Floor Scanner with Radar, (4) AA Batteries, (1) Hard Carry Case |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.1 pounds |
| Item model number | D-TECT120 |
| Manufacturer | BOSR9 |
| Material | Blend, Plastic |
| Part Number | D-TECT120 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Product Dimensions | 3.25"L x 4.25"W |
| Shape | Rectangular |
| Size | 325 in |
| Style | Industrial |
| UPC | 000346466720 |
| Warranty Description | Bosch 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,call 1-877-BOSCH99 |
D**A
Semi - Professional Stud Finder
The accuracy of this finder is amazing. I needed to locate a stud behind a gypsum wallboard faced with ceramic tile. The stud had to be precisely located to securely screw in a safety grab bar in our bathroom. Merely slide the detector along the surface until the signal strength indicator is maxed and the center crosshairs illuminate. That's the centerline of the stud plus or minus 1/2 inch. The composition of the wall or floor material can be selected on the finder if known. Choices are wallboard, concrete or universal. Finder works very well at the universal setting. There is an audio tone to assist the visual indication. By default it's "on". Technology of the device is based on a radar detector rather than inexpensive magnetic or capacitance devices. Main benefit of the dtud finder is the confidence in accurate results it gives to the user. Bosch also makes professional use versions of the finder at very much higher cost. Manufacturer claims the device can locate hollow pipes and electrical conductors but I did try these uses.
C**O
ok
ok!
A**K
Works as expected on drywall and stucco
Works well and is bigger and heftier than most Franklin’s. I mainly use it through drywall and stucco and haven’t had any issues. Only gripe is that the area where it makes contact against the wall gets scuffed up really easy and wished it had padding or something to help go over stucco.
A**R
What I needed for Electrical
This is a tool to have for me, in my opinion. My opinion means nothing, but it works for me. Will this be a great tool for you? It depends. If you need to locate just studs in a wall some DIY stuff…then there are more affordable options. If you are like me…installing car chargers and drilling through brick and concrete walls…this might give you a fighting chance along with having experience in the trades or engineering. For me, I couldn’t care about if an object in a wall is electrical (live/dead), gas, or plumbing. I just don’t want to hit it. I know studs are 16” or 24” on center roughly. I know gas, plumbing, electric usually ain’t uniformed in a wall. For me, I just want to hit a stud on a wall to mount something or drill through a cement/brick/drywall and not hit anything. I need a tool that will sound off about anything suspect in a wall. That’s it period. This is the best tool for that. 4” deep scan read on brick or cement wall is wicked good. There are $1k plus scanners that give percentage rates of failure but still no definitive yes or no’s.
A**R
Disappointing Performance considering the high cost
I had high hopes for the BOSCH D-TECT 120 Wall and Floor Detection Scanner, but unfortunately, it was a bit of a letdown. Unlike the overseas version, the US version does not accept Bosch's 12v batteries, which was disappointing. Additionally, while the device does find many items within the wall, it does not differentiate wall studs from pipes, wires, or other items to avoid. While it sometimes detected live wires, this is a hit-or-miss proposition at best. Overall, it is too expensive to be as unreliable as it is. There are detectors that are much cheaper with similar performance in standard drywall situations. Perhaps if it is used to detect items within concrete, then it might be worth the cost. Overall, I would not recommend this product unless you have a specific need for detecting items within concrete and are willing to overlook its shortcomings.
S**O
Los problemas que tuve con este producto fueron los siguientes. Cuando lo recibí no venia con el hard case como se ve en la publicación, aunque no fue el motivo de mi devolución ya que me gustó el estuche en el que venía y decidí conservarlo, sin embargo traía una estampa que era un producto original de BOSCH y también su etiqueta de que era un producto nuevo, pero cuando abrí la caja note que no traía las baterías y en la portada dice que están incluidas, vi un par de videos del unboxing de este producto y si trae las baterías y un pequeño plástico que proteje la pantalla pero el mio no lo traia, ahun así decidí conservarlo pense que tal vez alguien lo devolvió pero el detector seguramente estaba en buenas condiciones y fui a The home depot a comprar un paquete de baterías recargables con su cargador para poder usarlo. Cuando lo encendi inmediatamente comencé a utilizarlo en los muros donde sabía lo que había por dentro y detecto los cables eléctricos, madera y tuberia, pero en el tercer modo de de detección de varillas de acero el sensor detectava sin ponerlo en el muro, no parava de sonar y el led permanecía en rojo en todo momento solo se quitava si cambiaba a los 2 primeros modos de detección, decidí investigar si este comportamiento era normal pero no lo era, el funcionamiento normal es independientemente de los tres modos que elijas el aparato no deve enviar la alarma de detección hasta que lo colocas en el muro, hacia esto solo en los 2 primeros modos pero el tercero la alarma no se apagaba y tal vez tenia un defecto de fabrica, imagino que alguien lo regreso y me lo vendieron a mí con un descuento pero creo que prefiero un producto completamente funcional, no dudo de que sea un gran producto pero por los comentarios de los demás compradores me di cuenta que nadie recibió lo que está en la publicación, algunos recibieron otro tipo de caja o estuche, y alguien tuvo el mismo problema que yo que no dejaba de sonar la alarma, creó que lo comprare con un distribuidor autorizado BOSCH para tener la tranquilidad de recibir algo nuevo, y ese fue el motivo de mi devolución creo que este producto le volverán a poner la etiqueta de nuevo y lo venderán más barato, incluso hay un mensaje en la publicación de que tiene muchas devoluciones para que lo consideren.
H**A
Funciona muy bien Detecta bien las tuberias Lo unico que no me gusta, es que no diferencia que material esta detectando La alarma es la misma si es un tubo de agua, si es na varilla o si es tuberia de luz. Fuera se eso, detecto todo muy bien.
P**L
Good
J**L
Exactly what I needed! Great for DIY’ers and professionals . Pros: 1. Accuracy: The BOSCH Wall and Floor Detection Scanner D-TECT 120 has proven to be impressively accurate in locating objects behind walls and within floors. It's a reliable tool for DIY enthusiasts and professionals alike. 2. Depth Range: The scanner's ability to detect objects at varying depths is a real advantage. It can identify not only the presence of objects but also their approximate depth, which is crucial for planning any drilling or cutting work. 3. Build Quality: BOSCH's reputation for durable tools holds true with the D-TECT 120. It feels sturdy and well-constructed, reassuring you of its longevity. 4. User-Friendly Interface: The scanner's interface is intuitive and easy to navigate, making it accessible to both beginners and experienced users. The clear display and simple controls streamline the scanning process. 5. Versatility: This scanner is versatile, capable of detecting not only metal objects but also live wires, wood, and even plastic pipes. Its multifunctionality adds value to any toolkit. Cons: 1. Price: While the D-TECT 120 is a quality tool, it's on the higher end of the price spectrum. It might be a bit of an investment for occasional users. 2. Learning Curve: Although the interface is user-friendly, it still takes some time to fully grasp all its features and settings. Beginners may need some patience to become proficient. 3. Size and Weight: The scanner is relatively bulky and heavy compared to some competitors, which can be a minor inconvenience for extended use or tight spaces. In summary, the BOSCH Wall and Floor Detection Scanner D-TECT 120 is a reliable, accurate, and versatile tool for anyone involved in construction or DIY projects. While it comes at a higher price point and may have a slight learning curve, its performance and build quality make it a valuable addition to any toolkit.
R**A
Not as it claims only 40%
A**R
excellant product, worked though shingles
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