Will the TV Mount Hold? Best Stud Finder Types, From Magnets to 13-Sensor Scanners

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A TV mount, a heavy mirror or a loaded bookshelf is only as secure as the screws behind it, which is why the best stud finder is the cheapest insurance in your toolbox. Drywall alone can’t carry much weight. A wood or metal stud can.

We compared six stud finders using their Amazon listings: three electronic scanners, one multi-mode wall scanner and two magnetic finders that locate the screws and nails holding drywall to the studs. We looked at whether each finds stud edges, centers or the full width, how deep it reads, whether it warns about live AC wires, and what the maker says about plaster and lath. Five of the six sit in the lowest price tier, so price is rarely the deciding factor here.

Our Top Stud Finder Picks at a Glance

Price key: $ under $50 · $$ $50–$100 · $$$ $100–$175 · $$$$ $175+. Prices change often; check Amazon for today’s price.

1. Franklin Sensors ProSensor M210: Best Overall

Franklin Sensors’ ProSensor M210 is an electronic stud finder with 13 sensors spread across its face. Franklin contrasts that with conventional electronic stud finders, which it says have one or two, and claims more sensors mean more accuracy. Instead of beeping at one edge, it lights a row of LEDs over the whole stud.

In use, you press and hold the button and slide it across the wall. No calibration is required, and Franklin says you can start scanning anywhere, even over a stud, which trips up many single-sensor models. The LED display shows the full width of the stud and double studs, and the middle LED turns green to mark the stud center, which is where you want a lag screw for a TV mount.

The listing describes a deep scan that is always on, with detection up to 1.7 inches, and says it finds both wood and metal studs. It also has a built-in bubble level, live wire detection and a pencil caddy. It runs on two AA batteries, which are not included, and Franklin says rechargeable batteries are compatible. On its own FAQ page, Franklin says its stud finders work well on most lath and plaster walls but can’t be guaranteed on all of them.

It suits homeowners hanging heavy TVs, mirrors, cabinets and shelving, and anyone who has given up on single-sensor finders that give confusing readings.

Why we like it

• Whole-stud LED display
• No calibration step
• 1.7-inch deep scan

Watch out for

Batteries aren’t included, the warranty field is blank, and wire detection is an aid, not a guarantee.

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2. CRAFTSMAN Stud Finder CMHT77633: Best Budget Edge Finder

CRAFTSMAN’s CMHT77633 is a basic electronic stud sensor that finds the edges of wood and metal studs through drywall. It is a single tool with no accessories, and the listing keeps its claims simple: stud edges, a 3/4-inch depth range and a tough body.

Edge finding works by sliding the sensor across the wall until it signals the first edge of a stud, marking it, then coming from the other side to find the far edge. The middle of those two marks is the stud center. It takes a few more passes than a full-width scanner, but it is a reliable routine once you have done it a couple of times.

CRAFTSMAN lists a depth range of 3/4 inch through drywall and says it works on surfaces covered in wallpaper and fabric, which helps in older bedrooms and dining rooms. The body is described as shock-resistant and water-resistant for durability and long life. The listing doesn’t mention AC wire detection, so pair it with power switched off at the breaker when drilling near outlets and switches.

It suits renters and homeowners who hang pictures, curtain rods and light shelving, and who like a plain tool with a long warranty. The warranty field on the listing reads Full Lifetime Warranty.

Why we like it

• Lifetime warranty field
• Works on wallpaper and fabric
• Tough body

Watch out for

It finds edges only, reads 3/4 inch deep, and the listing mentions no wire warning.

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3. DEWALT DW0100 Stud Finder: Best Center-Finding with AC Warning

DEWALT’s DW0100 is a slim electronic stud sensor that finds the center of a stud rather than its edges. Directional LED arrows point you toward the stud as you slide, an audible alert sounds when you reach it, and a center marking channel lets you mark the spot without moving the tool.

DEWALT lists constant auto-calibration, so there is no separate calibration step, and a detection depth of 3/4 inch for wood and metal studs. It also has AC and live wire detection. DEWALT’s own manual says the live wire indicator should not be solely relied upon, that shielded wires or wires in metal conduit may not be detected, and that you should turn off AC power when working near wiring.

The listing is unusually clear about limits. It says the sensor will not detect objects in concrete, mortar, block, brick work, plaster, carpeting, foil-faced materials, metallic surfaces or ceramic tile, and that it isn’t designed to locate non-ferrous or plastic objects such as pipes. That makes it a drywall tool, not one for an older plaster house.

It suits homeowners in newer drywall homes hanging TVs, shelves and cabinets who want the stud center marked and a wire alert as an extra check. The title says AAA batteries are included, so it works out of the box.

Why we like it

• Finds the center directly
• Live wire alert
• Batteries included

Watch out for

DEWALT says it won’t read through plaster or find plastic pipes, and its wire alert is an indicator, not proof.

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4. Mecurate 5-in-1 Stud Finder (MSF60A): Best Multi-Mode Scanner

Mecurate’s MSF60A is a 5-in-1 wall scanner that looks for wood studs, metal and live AC wires. Instead of a row of LEDs, it uses an LCD screen that Mecurate says shows real-time detection data with clear graphics, and it pairs that with audio alerts.

You choose a mode before scanning. Standard mode reads to 3/4 inch, Deep mode to 1-1/2 inches, Metal mode to 2-3/8 inches and AC mode to 2 inches, according to the listing. Metal mode is handy for finding a metal stud or a steel nail plate, and the deeper stud mode helps on thicker drywall.

Mecurate says to calibrate the device against the wall before each use for best accuracy, and to read the manual for calibration, wall types and scanning technique. It says the tool performs best on single-layer drywall and is not recommended for concrete, brick, tile or other non-drywall surfaces. The listing describes AC detection that emits a warning sound near live wires; treat that as an aid, and switch off the breaker before drilling near wiring. The box includes the scanner, a battery, a carrying pouch and a user manual.

It suits DIYers in drywall homes who want more modes than a basic edge finder at a similar price, and who don’t mind a calibration step.

Why we like it

• Four detection modes
• LCD readout
• Battery and pouch included

Watch out for

It needs calibration before each use and is meant for single-layer drywall, not plaster, brick or tile.

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5. The StudBuddy Magnetic Stud Finder: Best Magnetic

The StudBuddy is a small magnetic stud finder with no batteries, buttons or moving parts. StudBuddy calls it the world’s simplest magnetic stud finder tool, and the listing says it is made in the USA from high quality, durable materials.

Here is how it works, per the listing: drywall is hung on wood or metal studs with screws or nails. The StudBuddy uses super-strong neodymium magnets to detect those screw and nail heads as you slide it across the wall. When it finds one, it sticks to the wall, pointing to the stud. Find two or three fasteners in a vertical line and you have found the stud.

Because it’s magnetic, it is always ready, with no calibration and no batteries to replace. It also doesn’t show edges, width or the stud center, only where fasteners are, so drive your screw close to the fastener line. The listing says plainly that it is not intended for use on lath and plaster walls and is best used for drywall and wood.

It suits homeowners in drywall houses who want a cheap, dependable tool to keep in a drawer, and anyone who has fought with an electronic finder’s false readings. Some people keep one alongside an electronic scanner to confirm a stud before drilling.

Why we like it

• No batteries ever
• Sticks to the wall at fasteners
• Made in the USA, per listing

Watch out for

The listing says it isn’t for lath and plaster walls, and it can’t warn about wires.

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6. Klein Tools MSF100 Magnetic Stud Finder and Level: Best Compact Magnetic with Level

Klein Tools’ MSF100 is a compact magnetic stud finder with a built-in bubble vial. Klein says its powerful rare-earth magnet detects metal studs and the fasteners in wooden studs, giving quick and precise stud identification without batteries.

Day to day, you slide it across the wall until the magnet grabs a screw or nail, and it stays put. The center top notch and bottom opening help you mark exactly where the fastener sits, and the bubble vial helps you draw a level line from there to the next stud. Klein also suggests using several of them as reference points, placing them on the wall while you work.

A felt pad on the back is meant to safeguard drywall and plaster surfaces as you slide it, so it won’t scuff painted walls. The listing gives a size of 2.75 by 1.39 by 1.13 inches and a weight of 0.11 pounds, so it fits in a shirt pocket or a tool pouch. Like any magnetic finder, it shows fasteners, not stud edges or width, and it doesn’t detect wires.

It suits picture hangers, shelf installers and anyone who wants a level and stud finder in one tiny tool. Klein makes other tools in our guides, but this magnetic finder is its own product line.

Why we like it

• Built-in bubble vial
• Pocket size
• Felt pad protects paint

Watch out for

It ranks lowest here, and like all magnets it finds fasteners rather than the stud itself.

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How We Chose the Best Stud Finders

We compared each stud finder’s Amazon listing, specs file and sales rank, and quoted only what the listings and makers say:

• Detection method: edge, center, full width, or magnetic fastener finding.
• Depth: the stated scan depth for each mode.
• AC wire warning: whether the listing claims it, treated as an aid rather than a guarantee.
• Wall limits: what each maker says about plaster, lath, tile and brick.
• Ease of use: calibration, batteries, display and marking aids.
• Availability: every pick was in stock and sold by Amazon.com or the brand’s own store when we checked, with one pick per brand.

Stud Finder Buying Guide

Best Electronic Stud Finder: Edge, Center or Full Width

Edge finders, like the CRAFTSMAN, signal each side of a stud and leave you to mark the middle. Center finders, like the DEWALT DW0100, point you straight to the center. Full-width scanners, like the Franklin ProSensor M210, light up the whole stud at once and, per Franklin, show double studs too. All three work; full width takes the fewest passes.

Best Multi-Sensor Stud Finder

Franklin says conventional electronic stud finders have one or two sensors and the M210 has 13, and that it needs no calibration. The Mecurate takes a different approach, with separate modes and a calibration step before each use. If you have given up on single-sensor tools, a multi-sensor model is the first thing to try.

Best Stud Finder With AC Detection

The Franklin, DEWALT and Mecurate listings all claim live wire or AC detection. Treat it as a warning light, not a clearance. DEWALT’s DW0100 manual says the indicator “should not be solely relied upon,” that shielded wires or wires in metal conduit may not be detected, and to turn off AC power when working near wiring. To confirm a circuit is dead before you work near it, use a tester from our outlet tester guide.

Best Magnetic Stud Finder

Magnetic finders, like the StudBuddy and Klein MSF100, don’t sense the stud at all. They find the steel screws and nails that hold drywall to it, so they need no batteries and give few false readings. They can’t show the stud’s width or warn about wires, so drill on the line of fasteners.

Best Stud Finder for Plaster Walls

Older plaster and lath walls are hard for any tool. DEWALT’s listing says the DW0100 won’t detect through plaster, Mecurate says its scanner performs best on single-layer drywall, and the StudBuddy listing says it is not intended for lath and plaster. On its FAQ page, Franklin says its stud finders work well on most lath and plaster walls but that it can’t guarantee performance on all of them. Klein lists a felt pad meant to protect drywall and plaster surfaces.

Depth: How Far In Each One Reads

The CRAFTSMAN and DEWALT read to 3/4 inch. Mecurate lists 1-1/2 inches in Deep mode and 2-3/8 inches in Metal mode, and Franklin lists deep detection up to 1.7 inches. Magnets work through ordinary drywall to the fastener heads; neither magnetic listing gives a depth.

Anchor Heavy Things Into Studs

• Anchor furniture and TVs. HealthyChildren.org, from the American Academy of Pediatrics, says a child is taken to the emergency department at least once every hour with injuries from a furniture or TV tip-over, and urges parents to anchor furniture to the walls. Our furniture anchor guide compares straps and brackets.
• Drive into the stud, not just drywall. Mark the stud, then drill a pilot hole with a drill from our cordless drill guide.
• Protect your eyes. DEWALT’s stud sensor manual carries the caution “Protect your eyes. Wear safety goggles.”
• Ask your agent about DIY damage. Whether a pipe or wire you hit while drilling is covered depends on your policy. See our Ohio homeowners insurance guide or renters insurance guide.

Frequently Asked Questions

What is the best stud finder for most people?

The Franklin Sensors ProSensor M210 is our overall pick. It has the best sales rank here (#2 in Stud Finders), 13 sensors that show the full stud width, no calibration step and deep detection up to 1.7 inches, per the listing.

Are magnetic stud finders better than electronic ones?

They are simpler. Magnetic finders like the StudBuddy and Klein MSF100 need no batteries and find the screws and nails in studs. Electronic finders show edges, centers or full width, and some add wire warnings.

Can a stud finder detect live wires reliably?

Not reliably enough to skip the breaker. DEWALT’s manual says its live wire indicator should not be solely relied upon and that shielded wires may not be detected. Turn off power before drilling near wiring.

What is the best stud finder for plaster walls?

Franklin says its stud finders work well on most lath and plaster walls, without a guarantee. DEWALT says the DW0100 won’t detect through plaster, and the StudBuddy listing says it is not intended for lath and plaster.

What is the best multi-sensor stud finder?

The Franklin ProSensor M210, with 13 sensors per the listing. Franklin says conventional electronic stud finders have one or two.

The Bottom Line

The Franklin Sensors ProSensor M210 is the best stud finder for most homes: the top seller here, with 13 sensors, a full-width display and 1.7-inch deep detection. The CRAFTSMAN CMHT77633 is the plain budget edge finder with a lifetime warranty field, the DEWALT DW0100 finds centers with a wire alert, and the Mecurate adds deep, metal and AC modes. For battery-free finding on drywall, the StudBuddy and Klein MSF100 are both small and simple.

Mounting a big TV or anchoring furniture this weekend? Call Jeff Smith’s State Farm office at (740) 354-7747 or schedule a free coverage review and ask your agent how your policy handles DIY damage.