Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

StudSensor L20 Stud Finder 0.75-in Scan Depth Wood stud Finder

Ratings & Reviews for Zircon StudSensor L20 Stud Finder 0.75-in Scan Depth Wood stud Finder

3.4
632
Review
 3.4 out of 5
632 Reviews


57% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers are divided on this stud finder's performance. Many praise its simplicity and accuracy on standard drywall, noting it works effectively for basic tasks. However, a substantial number report serious reliability issues, including false readings and failure to detect studs. A major complaint is poor performance on non-standard walls like plaster, lathe, insulated, and paneled surfaces—limitations not clearly communicated upfront. Users appreciate the ease of use and low price, yet those experiencing failures consider it worthless. Overall, satisfaction depends heavily on wall type and expectations.

Customer review summary generated by AI, including incentivized reviews.
632 Customer Reviews

stud finder

Would Recommend

Inexpensive and works great. Gives a clear red line when stud is reached. Good bargain.

November 6, 2026
Verified Purchaser
Was this Review Helpful ?

Ask an associate...

Would Recommend

My existing stud finder was less than perfect to say the least. Headed to Lowe's and asked an associate what he recommended. I had actually already reviewed everything that was hanging on the shelf and chosen one that I thought would be a good option. Incredibly, the associate pointed me out to the same item. Purchased it...used it.. satisfied!

November 4, 2026
Verified Purchaser
Was this Review Helpful ?

Inconsistant Scans

Would Not Recommend

When I scan across a wall, it beeps where a stud "is", but if I scan that same area a foot below, it doesn't show anything. There have been a few instances where I drilled a tiny test hole to confirm a stud's location but there was nothing but air. I can scan across a 4' section and get nothing even though I know there are studs at 16" on-center. I wish I'd kept the package so that I could return it. I'm going back to the old-fashioned magnetic types because they've never let me down. I don't wa...

November 3, 2026
Was this Review Helpful ?
Response from Zircon Customer Service

Hello Acemon - Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to hel... Read More

Zircon Customer ServiceNovember 5, 2026

zircon

Would Not Recommend

Won’t calibrate correctly.

November 1, 2026
Was this Review Helpful ?
Response from Zircon Customer Service

Hello Trey - Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to help,... Read More

Zircon Customer ServiceNovember 5, 2026

zircon

Great features

Would Recommend

This worked as intended

October 26, 2026
Verified Purchaser
Was this Review Helpful ?

Works great to be so inexpensive

October 16, 2026
Verified Purchaser
Was this Review Helpful ?

Does Not Work

Would Not Recommend

I think the title says it all, but it’s actually amazing what a terrible stud finder this is. Does not work at all. Worth paying more for a good stud finder.

October 3, 2026
Was this Review Helpful ?
Response from Zircon Customer Service

Hello Forrest - Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to he... Read More

Zircon Customer ServiceOctober 9, 2026

zircon

Would Recommend

Work great

October 1, 2026
Verified Purchaser
Was this Review Helpful ?

Don't waste your money

Not worth buying, upgrade to another.

October 1, 2026
Verified Purchaser
Was this Review Helpful ?
Response from Zircon Customer Service

Hello Cryket - Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to hel... Read More

Zircon Customer ServiceOctober 9, 2026

zircon