I am a woodworker, and wondering if this unit will detect nails and other metal objects in rough cut lumber. Some of the lumber is 2 inches+ thick.

Hello. No, the MS740 would not work to detect nails in rough cut lumber, because it needs to be depressed against the scanning surface the whole time that it is scanning. A better tool for this application would be the Zircon MetalliScanner M40. Thank you.

Can i use 9v lithium battery? it has a max typical voltage of 9.6v.

Hello. We do not recommend using a lithium battery. Thank you.

Can i glue a neodymium magnet to the wall-facing side to detect nails without compromising the function of zircon edge finding stud sensors?

I have not tried it but I believe you can use the metal scan to find nail heads.

Will this detect through plaster walls?

Yes it will. This is the best stud finder I have had. It works VERY well!

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🛠️ Scan Smart, Mark Fast, Build Confidently!

MARK IT LIKE A PRO - Integrated erasable wall marker lets you instantly mark targets without fumbling for tools—streamline your workflow.
MULTI MODE MASTERY - Switch effortlessly between StudScan, DeepScan, Metal Scan, and AC Scan to detect studs, metal, and live wires with confidence.
ERROR PROOF SCANNING - Auto Correcting Technology (ACT) automatically fixes common scanning mistakes, so you never miss a beat.
SAFETY FIRST ALWAYS - WireWarning technology alerts you to live, unshielded electrical wiring, keeping your projects shock-free.
PRECISION MEETS INNOVATION - Floating head design ensures flat sensor contact on rough surfaces for unmatched accuracy.

The Zircon MultiScanner 740 is a professional-grade electronic wall scanner featuring 4 versatile detection modes to locate wood and metal studs, live AC wiring, and metal objects up to 3 inches deep. Its unique floating head design and Auto Correcting Technology ensure precise readings on textured surfaces and reduce user errors. With integrated WireWarning detection and a built-in erasable wall marker, it combines safety, accuracy, and convenience in one ergonomic, battery-powered tool—perfect for millennial managers who demand efficiency and reliability on every project.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Brand	Zircon
Color	Yellow
Batteries Required?	Yes
Material	Wood
Power Source	Battery Powered
Item Weight	210 Grams
Recommended Uses For Product	Concrete Rebar Detection
Manufacturer	Zircon
UPC	042186723069
Part Number	72306
Item Weight	7.4 ounces
Package Dimensions	9.17 x 6.42 x 3.82 inches
Item model number	72306
Style	MS 740 with Wall Marker
Item Package Quantity	1
Display Style	OLED
Included Components	MS 740
Warranty Description	Limited Lifetime Warranty

Zircon MultiScanner 740 Electronic Wall Scanner with Built-In Erasable Wall Marker

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