DEWALT 3/4 in. Stud Finder (DW0100) : �鶹��.ca: Tools & Home Improvement

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DEWALT 3/4 in. Stud Finder (DW0100)

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3,973 ratings

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Brand	DEWALT
Colour	Multi
Batteries required?	Yes
Material	Plastic, Metal
Power source	Battery Powered
Item weight	0.01 Ounces
Product Dimensions	14.9L x 3.3W x 22.9H Centimetres
Battery life	1 Hours
Adjustable length	Yes
International protection rating	IP65

About this item

Center-find technology to easily find the center of the stud
Detection depth of 3/4 in. for wood and metal
AC and live wire detection for added safety
Constant auto-calibration to save time during use
Center marking channel for added convenience

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From the manufacturer

Why Dewalt

See why millions of professionals choose DEWALT. From our rich history and proven performance to our focus on innovation and technology. From 1922 to present day DEWALT continues to design and optimize professional jobsite solutions - tools, accessories - to ensure absolute confidence for the toughest conditions.

Product information

Technical Details

Manufacturer	‎DEWALT
Place of Business	‎BROOKLYN, NY, 11236 US
Part Number	‎DW0100
Product Dimensions	‎14.94 x 3.3 x 22.86 cm; 0.28 g
Batteries	‎2 AAA batteries required. (included)
Item model number	‎DW0100
Is discontinued by manufacturer	‎No
Size	‎One Size
Colour	‎Multi
Style	‎Classic
Finish	‎Brushed
Material	‎Plastic, Metal
Pattern	‎Solid
Shape	‎Rectangular
Power Source	‎Battery Powered
Voltage	‎3 Volts
Item Package Quantity	‎1
Display Style	‎LED
Included Components	‎AAA Batteries
Batteries Included?	‎Yes
Batteries Required?	‎Yes
Battery Cell Type	‎Alkaline
Average Battery Life	‎1 Hours
Item Weight	‎0.28 g
Country of origin	‎China

Additional Information

ASIN	B07GLCS7YY
Customer Reviews	3,973 ratings 4.2 out of 5 stars
�鶹�� Rank	#164 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1 in Stud Finders
Date First Available	Dec 14 2018

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Product description

Eliminate the guesswork with this center detect Stud Finder that has a detection depth of 3/4 in. for wood and metal. While traditional stud finders locate the edge of the stud, this one locates the center for a more efficient read. The finder is constantly calibrating to save time during use. Once the stud is located, an audible alert and directional LED arrows clearly notify the user. You can easily mark the center of the stud with the center marking channel.

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Customer reviews

3,973 global ratings

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Customers say

Customers like the functionality, ease of use, and lightweight design of the metal detector. They mention it works well and is a great addition to their tools. Some also say it's easy to read and use. However, some customers have issues with beeping, disagree on accuracy, detection, and quality.

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Functionality Ease of use Lightweight Design Accuracy Detection Quality Beeping

66 customers mention "Functionality"52 positive14 negative

Customers like the functionality of the metal detector. They mention it works well, doesn't hurt the wall, and is a great addition to their tools.

"Good Dewalt quality. Works well." Read more

"Excellent product, works well. Ordered this to find live wires as well to avoid accidents." Read more

"Great product" Read more

"...It’s unreliable and could lead to major mishaps, as every time it reads different." Read more

21 customers mention "Ease of use"15 positive6 negative

Customers like the ease of use of the metal detector. They mention it's pretty much plug-and-play and the simplist, most accurate studfinder they've tried. Customers also say it's helpful.

"Easy to use. Used it to find a stud so I could hang a heavy mirror" Read more

"...Its use is simplified, its indications are clear and it’s reasonably accurate...." Read more

"This finder is very hard to use: it gets stuck in the slightlest wall defect, the studs that it finds are never in the same place and you must..." Read more

"perfect size, simple, precise, functional all you could expect from DeWalt" Read more

6 customers mention "Lightweight"6 positive0 negative

Customers like the lightweight design of the metal detector. They mention it's slimmer than most and fits well in their tools.

"...Its light slim and super accurate, I hit the center of every stud I was trying to drill and screw into." Read more

"Very light weight and cheap." Read more

"It is what would be expected..... it is slimmer than most and fits well in my tool pouch...." Read more

"...This stud finder is very lightweight, and does the job perfectly. Has sensor to find the center of the stud and electrical wire...." Read more

3 customers mention "Design"3 positive0 negative

Customers like the simple design of the metal detector. They mention it looks well and is solid.

"...This stud finder is like that too, and I also like it because it’s minimalist...." Read more

"The product overall looked well but was not working after putting batteries in it. I returned it and got money back on time." Read more

"Simple design...." Read more

27 customers mention "Accuracy"10 positive17 negative

Customers have mixed opinions about the accuracy of the metal detector. Some mention it works as advertised and accurately finds the studs. However, others say it's inconsistent, gives constant false positives, and falsely identifies live currents. Additionally, some customers have reported that the electric current indicator lights up randomly and sometimes doesn't light up when there are studs.

"Inaccurate and does not make any sense...." Read more

"Not accurate." Read more

"Seems not accurate." Read more

23 customers mention "Detection"11 positive12 negative

Customers have mixed opinions about the detection of the metal detector. Some mention it's an effective stud finder that beeps when you reach a stud. However, others say it struggles to locate studs and often falsely identifies them.

"...As others have said, it struggles to locate studs, and often falsely identifies live currents...." Read more

"Overall, this is an effective stud finder that beeps when you reach a stud on the wall...." Read more

"...Does miss the wood studs at times." Read more

"This stud finder does the job...." Read more

21 customers mention "Quality"14 positive7 negative

Customers have mixed opinions about the quality of the metal detector. Some mention it's decent, solidly built, and reliable as a kids toy. However, others say the finish is easily scratched and the appareils are fragile.

"Great quality, easy to use." Read more

"Poor quality. Regardless I move this stud finder slowly, it didn't find stud. If it found a stud, couldnt find the stud again as same spot...." Read more

"...I have several DeWalt power tools and they all work fine and are all solidly made...." Read more

"Bought this to replace a defunct stud finder. Solidly built as expected with Dewalt...." Read more

4 customers mention "Beeping"0 positive4 negative

Customers are dissatisfied with the beeping of the metal detector. They mention it would beep at random locations then not beep there again. Some say it alarms a point at the first try, but doesn't do the job very well.

"...sensitive to electrical when it’s several inches away therefore excessive beeping. Does miss the wood studs at times." Read more

"it couldn’t do the job very well, it alarms a point at first try at the second one it didn’t show alarm, I think it was not useful." Read more

"Does not work. Finder would beep at random locations then not beep there again...." Read more

"Non-functional, inconsistent, beeps at random intervals...." Read more

Top reviews from Canada

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david silburt
Solid, minimalist, effective
Reviewed in Canada on June 5, 2025
Verified Purchase

I picked this because of the DeWalt name. I have several DeWalt power tools and they all work fine and are all solidly made. This stud finder is like that too, and I also like it because it’s minimalist. Its use is simplified, its indications are clear and it’s reasonably accurate. The instructions are minimalist, too, which is maybe not so impressive. A message on the card advises the user to “read all instructions inside the card,” but the inside card has nothing to read. Just diagrams, in the Ikea style, without any writing. The only company that ever successfully pulled off Ikea-style iconic instructions is Ikea. This comes close but you’ll want to check the full instruction sheet PDF, which is easily found online although the card doesn’t mention it. The tool has an important warning indicator to show you when you’re holding it over a live AC wire in the wall. (Pro tip: Don’t drill there.) It's also useful to realize that this probes for capacitance, which can be a bit iffy, and the wall studs are edge-on to you, meaning you have to drill to hit a target maybe 1.5 inches wide. So I like to use some of those viciously powerful magnets to feel for the nails that are in the studs too, just to corroborate what the stud finder is telling me. One more thing I liked about this: It’s made in Vietnam, and I’m an ABC shopper whenever possible. So I’m calling this thing good value.

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3 people found this helpful

Helpful

Joe C
works perfect
Reviewed in Canada on July 22, 2025
Verified Purchase
perfect size, simple, precise, functional all you could expect from DeWalt

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Helpful

�鶹�� Customer
Decent Stud Finder
Reviewed in Canada on July 15, 2025
Verified Purchase
Bought this to replace a defunct stud finder. Solidly built as expected with Dewalt. Functioned quite well, and was nice to have the marking spot in the center of the finder. Only minor complaint was it seemed too sensitive in picking up electrical wiring when I know the wiring was a bit further away.

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One person found this helpful

Helpful

B.A.J.
Handy piece of kit.
Reviewed in Canada on June 18, 2025
Verified Purchase
As advertised.

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2 people found this helpful

Helpful

Paul
Not so accurate maybe.
Reviewed in Canada on July 20, 2025
Verified Purchase
Seems not accurate.

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Helpful

babygirl
Works despite the cheapness
Reviewed in Canada on February 9, 2025
Verified Purchase
Used today looks kind of cheap but it works

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Helpful

Denis Y.
As helpful as a horoscope
Reviewed in Canada on July 27, 2025
Verified Purchase
This thing is supposed to tell you what’s hiding inside your wall. Spoiler alert: it doesn’t.

I tested it on my body and it screamed that I’ve got live AC wires running through (surprise!). The same test was done on the empty cardboard box, which apparently also has an electric current running through its soul.

It’s basically a prop. A performance. It pretends to protect you, giving off confident little beeps while telling you absolutely nothing useful. A fantastic illusion, if you're into that sort of thing.

Save your money, your time, and your wall. This gadget is about as helpful as a horoscope when you're rewiring your kitchen.

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One person found this helpful

Helpful

North of 60
Can’t go wrong with DeWalt
Reviewed in Canada on June 13, 2025
Verified Purchase
Great product

Read more

One person found this helpful

Helpful

Top reviews from other countries

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Szimon Krisztián
Quite accurate
Reviewed in Germany on March 16, 2025
Verified Purchase

It's on point finding electrical wires.
I haven't tried wood yet!

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m holland
Works well
Reviewed in Australia on September 12, 2024
Verified Purchase
I tried two other stud finders on an insulated stud wall and neither worked correctly. This one found the studs easily and accurately.

Read more
FERNANDO A.
Útil para sondar elementos dentro da parede.
Reviewed in Brazil on November 26, 2024
Verified Purchase
Bom custo benefício para uso doméstico.

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Steven
Arrived on time
Reviewed in the United Arab Emirates on February 21, 2024
Verified Purchase
Does the job

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Xavier
Worked for me!
Reviewed in the United States on September 5, 2024
Verified Purchase
So I was very skeptical to purchase this after seeing the reviews, however it was on sale and I love DeWalt products plus I like to develop opinions based on my own experiences so I bought it to give it a try, at first I when holding it outside the package I thought to myself this is so lightweight and cheap now I see what everyone was talking about. However when I tested it several times over and over it was spot on atleast 90-95% of the time! Both with studs and live wire! Not saying the folks who couldn’t get it to work don’t know what they’re doing but for me it really did work and I was very pleased with it, even tested it against a 3 in 1 more expensive finder I have and this was quicker to detect the objects and from much further away as compared to my “better” one. For the folks who can’t get it to be accurate I would not read the instructions but watch the video so you can see how to really use it, make sure your walls aren’t too thick, make sure they are actually drywall and not plaster or any other material, make sure you lay it flat on the wall and hold the middle button until the lights minus the power light go off, make sure your moving it in one direction on the wall not changing your height or position on the wall it should be slow smooth slides in one direction also not up and down and back and forth on the wall, just one clean slow uni-directional movement. Also you have to keep your hand in the same position once it’s on the wall you can’t be moving your fingers or hands at all, this will throw off the calibration, you also need to make sure your opposite hand and arm are at your side and away from the hand with the finder if you touch the wall with your other hand or even bring it near the hand your using to locate the stud it will throw off the calibration. If you do all of these steps and it’s still not working for you maybe it isn’t the best product and I lucked out. However I must say I am fully impressed by this stud finder.

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