Internet #202563186

Model #03040

Magnetic Stud Finder

  • Uses rare earth magnets to detect nails, screws and other metals
  • Rotating bubble vial aids leveling precision
  • No batteries required for operation
  • See More Details

Frequently Bought Together


Product Overview

This Magnetic Stud Finder from C.H. Hanson uses a tried-and-true method to reliably locate studs behind sheetrock and drywall. It's equipped with rare earth magnets that detect nails, screws and steel studs, allowing you to pinpoint suitable locations to securely mount wall decor, shelves, cabinets, TV brackets and more. A built-in rotating bubble vial identifies level and plumb alignments for horizontal and vertical precision.
  • Compact and lightweight; nicely fits in a pocket
  • Clings to a wall via magnetic force when it detects metals
  • Has three anchor points on each side for easy leveling
  • Ergonomic shape with soft grip fits comfortably in your hand
  • No false positives guaranteed
  • 3/4 in. maximum wall thickness
  • Great solution for all your detection needs


Info & Guides

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BrandJohnsonC.H. HansonStudPoPZircon
NameStud Finder PlusMagnetic Stud FinderMagnetic Stud FinderStudSensor HD35 Stud Finder
Hand Tool TypeStud SensorStud SensorStud SensorStud Sensor
FeaturesDigital,Hand-Held,LED DisplayMagnetic Electronic,Hand-Held,No Additional Features
Battery Type RequiredNone, Manual OperationNone, Manual Operation 9-volt
View ProductView ProductView ProductView Product



Product Depth (in.)
.625 in
Product Height (in.)
3.25 in
Product Width (in.)
1.25 in


Audio alert
Batteries Included
Battery Type Required
None, Manual Operation
Detects metal
Detects voltage
Digital Display
Hand Tool Type
Stud Sensor
Laser level included
Maximum wall thickness (in.)
Number of Batteries Required
Tools Product Type
Hand Tool

Warranty / Certifications

Manufacturer Warranty
Warrant the product against manufacturer's or material defects

Questions & Answers


Does it work with lath & plaster?

Asked by traveler August 3, 2020

I am not sure. My hunch would be no.

How long does it take to find a nail when moving this in an S pattern?

Asked by Aatish July 28, 2020

Depends on how lucky you are and how the installers laid out the nails/screws, and how big of a pattern you sweep in. Logic needs to be applied. GENERALLY the screws should be 16" apart vertically. and a row on every stud. Best way is to start at the top or bottom of a wall within the first 6 inches or so where the first screw/nail might have been started.

Is this for metal studs will it work on wood studs

Asked by bernie October 28, 2019

Yes to wood studs, it will find the screws/nails in them

Will it work on plaster walls.

Asked by Mark December 1, 2018

It does not work well on mine

Will this work on a ceiing?

Asked by Hal November 16, 2018

It will find a nail or screw that holds the Sheetrock up they you have to figure out which way the trusses go.

Will it find studs from the outside of the house? I need to nail something from the outside of the house which is vinyl

Asked by KD September 13, 2018

No. Too many layers of siding, sheathing and possibly insulation cause false readings. Vinyl siding nails are rarely spaced to be on a stud.

Will this work on carpet?

Asked by Haines2416 April 11, 2018

Nope, too thick for the magnet to work

Would it prevent me from drilling on wires?

Asked by reese March 4, 2018

No it wouldn't. this only has a small level and 2 strong magnets in it.

Does it detect wooden studs

Asked by Biz September 20, 2017

Yes, the way this tool works is by "detecting" the nails in the studs through a magnet. You'll feel a little resistance while you move it on the wall in an S pattern.

how to use this? I found one point where this stud finders sticks to, what's next?

Asked by KissShane June 3, 2017

You move this product in an "S" shape pattern to scan the wall; however, when you find one screw you can move the device straight up and down and this should detect all the dry wall screws on the stud. You can put small marks on each one to avoid drilling on top of the dry wall screw.

Magnetic Stud Finder - page 2

Customer Reviews

  • 4.7
    out of 977 reviews
  • 92% recommend this product
Filter by:
Showing 1-10 of 977 reviews
It doesn't work at all on plaster walls. It sticks to metal no problem but as far as finding stud...
It doesn't work at all on plaster walls. It sticks to metal no problem but as far as finding studs behind thin old plaster you'd probably have much better luck just tapping walls and listening with something. It's also tiny. It looks larger in the online photo but it's only got 2.5 inches of search area. It appears to be two circular magnets that stick well to steel but if you live in an old building with plaster walls this isn't going to work. Electronic stud finders work but this doesn't. It might be fantastic on drywall (no idea) but on plaster it was a let down and will be going back.
Simple but effective stud finder!
I was pleasantly surprised at how great this stud finder works. It will never need to replace battery because it's magnetic. It is very simple but works really well. The magnet is strong enough to hold its own weight if the nail it finds is thick enough. My advice is to do a sweeping method left to right from high to low and try to feel for any tugging when it goes over a nail. then go up and down from there to see if it will hit another nail. That'll mean you most likely have found a stud!
by TmyT
TOO SMALL..... Way smaller than what it should be!
Real dimensions: 3.25 x 1.25 x 0.625 in On the website: 7.125 x 4.5 x 1.25 in Only half size! Totally different!
by NT
Way smaller than expected! It's about the size of a hot wheel. It is a little difficult to find a...
Way smaller than expected! It's about the size of a hot wheel. It is a little difficult to find a stud but once found the magnet is strong enough to hold it to the wall. Not sure if I recommend.
by MJ
4 people found this helpful
Does not work on my plaster walls; which I expected. Since this senses metal very near the surf...
Does not work on my plaster walls; which I expected. Since this senses metal very near the surface. A nail head in lath is small and buried under .5" of plaster. Any wall surfacing that is large and needs large headed screws/nails, that are then thin coated, this works great on (e.g. sheetrock, paneling).
by thedogscar
6 people found this helpful
Best and Handy Device for basic handyman work.
Best and Handy device for basic handyman work. I used it to detect studs in my front porch columns to hang fern planters. It worked great as expected.
by Aneil
7 people found this helpful
Best I've found
Easy to use. I even put it on the ceiling and it stayed until I moved it. It finds the nail or screw in the wall through magnetization. I almost forgot where I put it until I looked up. LOL!
by QMarley
32 people found this helpful
Forget the electronic gizmos and just buy this...
Sometimes technology just gets carried away with itself, as in the case of electronic stud finders. This baby just sticks to the wall when it finds a nail or steel stud. No batteries required. I have only used this on dry wall but it works great at a fraction of the cost of it's techno competitors. Earth magnets rock!
by thenubofit
40 people found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Small. Easy to handle. Gorilla strength magnet. Like a magician,...
Small. Easy to handle. Gorilla strength magnet. Like a magician, it always finds the stud.
by Beek
Showing 1-10 of 977 reviews