Franklin Sensors ProSensor M150/X990 Stud Finder with Live Wire Detection and 9-Sensors, Wood & Metal Stud Detector/Wall Scanner…
Franklin Sensors · 3 more picks →
Best for
Best overall
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$39.97
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the ProSensor M150/X990 lands as the best-rounded electronic pick: nine sensors and a full-width LED display that shows both edges and the center of a stud without any calibration. Homedepot verified-purchase reviewers repeatedly call out how easy it is to see the entire stud at a glance, and r/diynz commenters say once they switched to a Franklin ProSensor, "anything else now feels inferior." r/Tools threads echo that the multi-sensor approach guides you to the stud more reliably than single-point finders. The consensus advantage is speed and confidence on standard drywall, plus live-wire warning at a mid-tier price.
What reviewers liked
- Full-width LED display shows both edges and center of the stud at once
- No calibration required; one mode handles most walls
- Very large, consistently positive verified-purchase review base (~4.6 across ~4,050)
- Includes live-wire detection at a mid-tier price
Where it falls short
- Requires batteries, unlike magnetic alternatives
- r/Tools users report occasional inconsistent reads on atypical walls
- Wider body is bulkier than pocket magnetic finders
- Less effective than the MAX on very deep or layered walls
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Across the reviewers we read, the ProSensor M150/X990 lands as the best-rounded electronic pick: nine sensors and a full-width LED display that shows both edges and the center of a stud without any calibration. Homedepot verified-purchase reviewers repeatedly call out how easy it is to see the entire stud at a glance, and r/diynz commenters say once they switched to a Franklin ProSensor, "anything else now feels inferior." r/Tools threads echo that the multi-sensor approach guides you to the stud more reliably than single-point finders.
The consensus advantage is speed and confidence on standard drywall, plus live-wire warning at a mid-tier price. The honest caveat surfaced in r/Tools is that even Franklin's sensors can occasionally give inconsistent reads on unusual assemblies, and the device still needs batteries. But with the deepest review pool of any electronic model here and no flagged-source noise, it earns the top spot as the default recommendation for most buyers who want an electronic scanner.
- Accurate
- More sensors = More accuracy. Conventional stud finders have 1 or 2 sensors. The ProSensor M150 has 9, making it the most accurate stud sensing tool on the market.
- Easy
- One mode finds it all! The ProSensor M150 adjusts for a variety of depths, materials, and textures. No calibration required. Press and hold the button to begin scanning. The ProSensor M150 allows you to start scanning anywhere, even over a stud.
- Displays Full Studs
- The LEDs show the whole stud, double studs, and irregular configurations.
- Deep Detection
- The ProSensor M150 has a max detection depth of 1 1/2" through drywall/sheetrock and more.
- Extra Features
- Live Wire Detection. Two AAA batteries required, not included. NOT compatible with rechargeable batteries.
It definitely has more sensors than anything else on the market and I like that it does guide you a little bit, but it was giving me bad ...
They both have the same accuracy and reliability, but the more LEDs there are the more precisely they can show you the outline of the stud/ ...
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“Best Stud Finder I have used” · YouTube
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