I need to run some wires in my wall. What is the best stud finder that can also detect electrical wiring?

If you’re running wires through an existing wall, I’d prioritize a scanner that detects studs + metal + live AC wiring, rather than a basic stud finder.

My picks

• Bosch GMS120-27 Digital Wall Scanner - $119.00 (The Home Depot)

• Franklin Sensors ProSensor M210 - $73.97 (The Home Depot)

• Zircon MultiScanner HD900 - $59.97 (The Home Depot)

• Bosch D-TECT 120 Wall/Floor Scanner - $419.00 (1 Top Tools)

• Best overall for your job: Bosch GMS120-27 — about $119. It detects wood/steel studs, metal objects, and live wires, making it a good all-around choice when you're actually cutting/drilling into walls.

• Best value: Zircon MultiScanner HD900 — around $60. It has dedicated modes for studs, metal, and live electrical wiring.

• Best stud finder, if wire detection is secondary: Franklin ProSensor M210 — its 13-sensor array makes locating the full width of a stud particularly easy, and the M210 also has a live-wire indicator.

• Best professional/heavy-duty: Bosch D-TECT 120 — substantially more expensive, but it uses radar and can detect wood, metal, live wiring and plastic pipes, with detection up to several inches depending on material. Bosch specifies live copper-wire detection up to 2⅜ inches.

One important warning

Don't treat the wire-detection feature as a guarantee that a wall is safe to drill. These sensors generally detect the electromagnetic field from energized, unshielded AC wiring; wiring can be missed because of shielding, depth, orientation, or other wall materials.

Before cutting, I'd use the scanner to map the studs and suspected wires, turn off the relevant breaker, and verify the circuit is actually dead with an appropriate voltage tester. Also be aware that plumbing can be behind the wall even when the stud finder doesn't identify it.

If you tell me roughly what kind of wall you have (½-inch drywall, plaster/lath, etc.) and your budget ($50, $100, $200+), I can narrow it down to one model.

The Bosch GMS120-27 Digital Wall Scanner Go to product viewer dialog for this item. is one of the best multi-function tools for locating studs and detecting live electrical wiring safely.

When running wires inside a wall, you need high accuracy to avoid both framing and dangerous AC cables. Here are top-performing wall scanners with reliable live wire detection capabilities:

Tips for Detecting Wires in Walls

• Scan multiple times: Live wire detection works best when current is actively flowing through the wire.
• Watch for depth limitations: Most standard consumer scanners detect live AC wires up to 2 inches deep behind standard drywall, but thick plaster or specialized wall materials can reduce accuracy.
• Cross-reference with metal mode: If you aren't sure if a reading is a stray signal or an electrical cable, use the dedicated metal-scanning mode to check for the copper or conduit inside the wall.

Would you like me to share tips on how to safely fish wire through an insulated wall once you locate your path?

When you are running wires inside a wall, tracking down wooden studs is only half the battle—avoiding live electrical lines is a major safety priority. Standard electronic stud finders often include basic AC detection, but performance varies heavily.

Top choices depend on whether you want a dedicated consumer tool or high-tech visualization:

• Bosch D-Tect 120 Wall Scanner Go to product viewer dialog for this item. : Widely considered a top-tier choice for professionals and advanced DIYers. It uses radar technology to accurately pinpoint wood, metal pipes, and live electrical cables up to 4.7 4.7 4.7 inches deep, giving you clear visual cues on its screen. You can check it out via Engineers Supply.
• Walabot DIY 2 Go to product viewer dialog for this item. : A unique device that pairs with your smartphone (iOS or Android). It uses radio frequency technology to actually "see" inside the wall, mapping out studs, pipes, and live wires visually on your phone screen so you know exactly what is behind the drywall. Take a look at the product details on eBay's Walabot listing.
• Zircon MultiScanner (like the A200 Go to product viewer dialog for this item. or L550c Go to product viewer dialog for this item.) : A more traditional, highly reliable mid-range option. Zircon’s patented WireWarning detection constantly alerts you to hot, unshielded AC electrical wires during regular stud scanning.
• DeWalt DW0150 Center Detect Go to product viewer dialog for this item. : A rugged, user-friendly choice featuring center-finding technology for wood/metal and an integrated AC wire warning indicator that flashes and alerts you when live voltage is nearby.

A quick tip on AC detection: Built-in wire warnings on standard stud finders look for a static electric field around live wires. They work best when the wire is actively powered and close to the drywall surface, but they aren't foolproof.

To help narrow down the best tool for your project, tell me:

• Are you planning to cut open large sections of drywall or just drill a few holes to fish the wires?
• Do you prefer a traditional handheld tool with an LCD screen or a smartphone-linked radar scanner?

If you’re running wires in a wall, I’d prioritise a detector that can find live AC cables as well as studs, but remember: no consumer stud finder is a guarantee that a wall is safe to drill or cut into. Always isolate power where possible and treat any warning as a reason to investigate further.

My top picks:

Best overall: Franklin Sensors ProSensor M210

• Excellent at finding the full width of studs rather than just a point.
• Uses multiple sensors, making it less prone to “losing” the stud as you move it.
• Includes live-wire detection.
• Very good choice for typical plasterboard/drywall walls.

Best for: most DIYers who want the easiest, least frustrating option.

Best if you care most about electrical hazards:

• A professional-style wall scanner rather than a basic stud finder.
• Designed to detect more than just studs, including cables and other objects behind walls.
• Much more expensive, but better suited to renovation work where you need more confidence.

Best for: cutting chases, drilling multiple holes, older houses, or higher-risk work.

Best value:

• Finds studs, metal, and live AC wiring.
• Good feature set for the money.
• Zircon models are widely used for general home improvement work.

Best for: occasional DIY jobs.

Good budget cable detector:

• Simple traffic-light style indicator.
• Good for detecting live wires and metal.
• It is more of a cable/metal detector than a true stud finder.

Best for: checking before drilling, not locating studs for mounting.

A few things to know before running wires

• Most electronic stud finders detect energised cables by their electrical field; a cable that is switched off may not be detected.
• They can miss cables in some situations (for example, shielded cables, unusual wall construction, or deep runs).
• In UK homes, wall construction varies a lot (plasterboard on studs, dot-and-dab, solid masonry, older plaster), so performance can differ significantly.

For a typical UK home DIY job, I’d choose the Franklin ProSensor M210. If you’re actually cutting into walls to install new electrical wiring, I’d step up to a Bosch wall scanner rather than relying on a stud finder alone.

Here are top web results for exploring this topic:

Outdoor Life·https://www.outdoorlife.com The Best Stud Finders of 2026, Tested and Reviewed - Outdoor Life I organized these tools into two basic categories: magnetic and electric. Magnetic stud finders are simply strong magnets in a housing that cling to the nails or screws beneath the paint and spackle o Reddit·https://www.reddit.com Looking for a decent stud finder and live wire detector - Reddit I got the Franklin Sensors 710 stud finder and it works great for finding studs (but won't detect live wires). For finding live wires I use a Meterk E9903 which is an "all-in-one" stud finder / metal The Home Depot·https://www.homedepot.com**Stud Finders** - The Home Depot Franklin Sensors stud finders are the most accurate stud detectors because they have more sensors. Other stud finders typically have only 1 or 2 sensors. The M155 has 9, making it the best wall stud f YouTube·https://www.youtube.com**Best Stud Finder** ? We Tested the 5 Top-Selling Models in 2026 As an electrical contractor, I have owned a bunch of different stud finders. Overall, I like Franklin and Zircon the best. I own top tier models of both and in critical or difficult applications, use TechGearLab·https://www.techgearlab.com The Best Stud Finders | Tested & Ranked - TechGearLab ... and then used them while working on our own home projects to get a feel for their real-world performance. For a fully comprehensive model, the Bosch GMS120 Digital Multi-Scanner is one of our favo Amazon.com·https://www.amazon.com**Best Stud Finders** & Scanners - Amazon.com CH Hanson Magnetic Stud Finder | Battery-Free Stud Locator with Rare Earth Magnets | Finds Nails & Screws Behind Drywall | Built-In Level for TV Mounting, Shelves & Home Projects · #11 · Mecurate 5-in The New York Times·https://www.nytimes.com The Best Stud Finder for Home Use | Reviews by Wirecutter After years of testing and trying new models, we've found that the C.H. Hanson 03040 Magnetic Stud Finder stands out for its reliability and accuracy. For anyone who uses a stud finder only occasional YouTube·https://www.youtube.com Engineers TEST Stud Finders | Dewalt vs Zircon vs JAXWQ - YouTube WE TESTED 8 OF THE BEST STUD FINDERS WE COULD FIND From Amazon's best sellers to well know brands like DeWalt and Zircon. We measured their accuracy , their ability to detect live wire and their abili www.bobvila.com·https://www.bobvila.com/articles/best-stud-finders/The Best Stud Finders of 2026, Tested and Reviewed - Bob Vila To identify the most reliable options on the market, the team tested eight stud finders, including both magnetic and electronic models, to determine which ones performed best across a variety of wall Popular Mechanics·https://www.popularmechanics.com The 6 Best Stud Finders of 2026, Tested by Popular Mechanics Aside from detecting wooden and metal studs, the Bosch Wall Scanner also detects live AC wiring and other metal objects in the wall. With multiple functions, it wasn't as straightforward to use as oth

If you’re running wires inside a wall, I’d prioritize a stud finder that can detect live AC wiring, metal, and studs—not just a basic stud sensor.

My top pick: Franklin Sensors ProSensor M210

• Franklin Sensors ProSensor M210 - $73.97 (The Home Depot)

The M210 is probably the best choice for a typical drywall DIY project. It uses 13 sensors to show the full width of the stud, rather than just guessing at its center, and it has a live-wire meter. Independent testing also rated it highly for accuracy and ease of use.

Why I'd buy it:

• 13 sensors for easier stud identification
• Shows the edges and center of the stud
• Live electrical-wire detection
• No complicated calibration
• Around $60–$75 currently, depending on the package

If electrical/wiring detection is your #1 concern: Bosch GMS120-27

• Bosch GMS120-27 Wall Scanner - $119.00 (The Home Depot)

This is the one I'd choose if you're doing more invasive wall work. It detects wood studs, metal, and live wires, and is designed more as a multi-material wall scanner than a simple stud finder. Recent testing specifically praised Bosch's ability to identify wood, metal, live electrical wires, and plumbing.

A cheaper option

• Zircon MultiScanner i520 - $69.99 (Ace Hardware)

The Zircon i520 is around $70 and detects wood/metal studs, metal objects, and live AC wiring. It's a good middle ground if you don't need the Franklin's wide 13-sensor layout or Bosch's more professional feel.

One important safety point

Don't treat the wire-detection function as proof that a wall is safe to drill. These sensors can miss wires depending on their orientation, depth, shielding, and whether they're energized. Franklin itself warns that its live-wire feature may not detect every live wire.

If you're actually cutting into the wall to run new cable, I'd turn off the relevant breaker and verify the circuit is dead with an appropriate electrical tester before cutting/drilling. A stud finder is a secondary safety check, not the primary one.

Bottom line: For most homeowners, I'd get the Franklin M210. If you're doing a lot of remodeling and want a more capable wall scanner, spend more for the Bosch GMS120-27.

When you are running wires inside a wall, tracking down wooden studs is only half the battle—avoiding live AC electrical lines is a major safety priority . Standard magnetic stud finders won't help you here because they only locate drywall screws or nails. You need an electronic multi-scanner with dedicated live AC wire detection.

Top options on the market balance reliable stud finding with accurate, real-time electrical warnings:

Bosch GMS120-27 Wall Scanner — Widely regarded as one of the best multi-mode professional tools. It features clear visual indicators (an illuminated LED ring that changes color), precise center-finding, and specific modes for wood, metal, and live AC wiring. It excels at differentiating between targets and minimizing false positives.

Zircon MultiScanner A200 — Known for its reliable WireWarning detection. It features an illuminated LCD screen, an ergonomic grip, and a SpotLite pointer that projects an arrow directly onto the wall when it detects a target or unshielded AC voltage.

Franklin Sensors ProSensor M210 — Utilizes multi-sensor technology (13 sensors) to give you an instant, full-width visual map of what's behind the drywall, paired with a dedicated live wire warning meter. It is exceptionally fast and accurate for tracking wood and metal framing.

Quick Tips for Safe Wiring:

1. Calibrate correctly: Always place the tool flat against the wall before turning it on or hitting the calibrate button, as starting directly over a wire or stud can skew the sensor.
2. Scan multiple heights: Wires don't always run straight up and down; scan horizontally and vertically around your target area.
3. Verify with caution: Consumer stud finders are great for general warnings, but consumer-grade AC detection can occasionally throw false positives or miss dormant/shielded wires. If you are cutting open a major section of the wall, turn off the breaker to that room or double-check with a dedicated non-contact voltage tester.

If you can tell me what type of wall you have (standard drywall vs. lath and plaster) and what tools you already own , I can help you decide which scanner fits your specific project best.

If you're going to open up a wall and run wires, I'd spend a little more on a good wall scanner rather than a basic stud finder.

My top pick: Franklin Sensors ProSensor M210

Franklin Sensors ProSensor M210

$73.97

The Franklin Sensors ProSensor M210 is the one I'd buy for typical drywall. It has 13 sensors, shows the entire width of the stud rather than just an edge, detects wood and metal studs, and has a dedicated live-wire meter. It scans to about 1.7 inches deep and doesn't require calibration.

An independent 2026 test also named the M210 its best overall stud finder, specifically noting its accuracy on both studs and live wires.

If wire detection is your #1 priority: Bosch GMS120-27

Bosch GMS120-27

$119.00

I'd choose the Bosch GMS120-27 if you want more of a professional wall scanner. It identifies wood/steel studs, metal, and live wires, and Bosch specifies detection of copper wiring up to 2 inches deep. Its display also tells you what type of material it's detecting and indicates the center.

It's more expensive and somewhat less foolproof than the Franklin, but it's the better choice if you're dealing with multiple layers of drywall, metal, pipes, or complicated walls.

One important warning

Don't treat the electrical-wire detector as proof that a wall is safe to drill. These tools detect live/energized wiring, and detection can fail depending on the wiring, wall construction, depth, shielding, or whether the circuit is energized. Independent testing has found that even good wire detectors can miss wiring in some real-world walls.

For your particular project, I'd do this:

1. Scan for the stud with the M210.
2. Scan the entire area around where you'll drill for live wires.
3. Check both sides of the wall if accessible.
4. Turn off the relevant breaker before drilling/cutting.
5. If you're cutting a sizable opening, use additional verification rather than relying solely on the stud finder.

Bottom line: M210 for the best combination of stud finding + live-wire warning; Bosch GMS120-27 if you want the more sophisticated wall scanner.

When you are running wires inside a wall, hitting a live electrical cable is the absolute last thing you want to do. While standard magnetic stud finders are fantastic for finding wood studs , they cannot detect electrical wires. For wire safety, you need an electronic multi-scanner with active live AC detection.

The top-performing electronic stud finders and wall scanners on the market that excel at both accurate stud mapping and live wire detection include:

Franklin Sensors ProSensor M210 — Best Overall for Accuracy. Unlike traditional 1- or 2-sensor tools, the M210 uses 13 precision sensors to instantly display the full width and center of a stud. It also features a dedicated live wire warning meter that lights up when electromagnetic fields from active AC cables are nearby.

Bosch GMS120 Digital Multi-Scanner — Best Professional Multi-Scanner. A long-time favorite for contractors and electricians, the GMS120 features three distinct modes (wood, metal, and live AC wiring) and uses an illuminated 3-color LED ring (red/yellow/green) to clearly warn you when you are closing in on a live wire or metal pipe.

Zircon MultiScanner A250c / A200 — Best Mid-Range Value. Zircon is a pioneer in "WireWarning" technology. The multi-scanner lines feature auto-correcting technology to reduce user error and active, constant AC detection that alerts you to live, unshielded electrical wiring in both standard and deep-scan modes.

Walabot DIY 2 — Best High-Tech Imaging Tool. This device pairs with your smartphone via Wi-Fi to give you a visual "X-ray" image of what is inside your wall. It maps out studs, pipes, and electrical lines with precise tracking, though it has a steeper learning curve and higher price tag.

A Quick Word of Caution on Wire Detection

No stud finder is 1 0 0% foolproof. Electronic AC scanners look for electromagnetic fields from live, energized current . If a wire is unpowered (dead), deeply shielded in metal conduit, or twisted in a specific way that cancels the field, a standard stud finder might not trigger the warning.

If you want to narrow down your choice, let me know:

• What is your budget?
• What type of walls are you scanning (drywall, thick plaster, or lath)?

I can help you pick the exact tool that fits your project.

If you’re going to run wires through an existing wall, I’d prioritize a scanner that can detect wood studs, metal, and live AC wiring rather than a basic stud finder.

My picks

Franklin Sensors ProSensor M210

$73.97

Bosch GMS120-27 Wall Scanner

$119.00

Zircon StudSensor L50

$17.98

🥇 Best overall for your job: Franklin Sensors ProSensor M210
The M210 uses 13 sensors to show the whole width of a stud and also has live-wire detection. It’s particularly nice when you’re trying to establish exactly where you can drill rather than just finding a stud center. Current listing is around $60–$74.

🥈 Best if you're doing serious wall work: Bosch GMS120-27
This is the one I'd choose if you're also concerned about metal conduit, pipes, or other objects behind the drywall. It has dedicated detection for wood/steel and live AC wiring. Current listing is about $119.

🥉 Good inexpensive option: Zircon L50/A-series
If this is a one-off DIY project, Zircon's wire-warning models give you stud detection plus AC-wire warning without spending $100+.

One important warning

Don't treat the electrical-wire function as a guarantee that a wall is safe to drill. These detectors generally sense energized wiring, and testing has shown that wiring can sometimes fail to trigger them depending on how it's installed or shielded.

For running a new cable, I'd turn off the relevant breaker before drilling/cutting, verify the circuit is dead with an appropriate voltage tester, and use the scanner as an additional layer of information—not your sole safety check.

If it were my money: I'd get the Franklin M210 for ordinary drywall. If you're dealing with an older house, plaster, thick walls, metal conduit, or you really want to know what's behind the wall, I'd spend more on the Bosch GMS120-27.