Franklin Sensors ProSensor M150/X990 Stud Finder with Live Wire Detection and 9-Sensors, Wood & Metal Stud Detector/Wall Scanner, Made in The USA
Condition: New
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Tuesday, Dec 9
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Features
- 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.
Brand: Franklin Sensors
Color: Yellow
Batteries Required?: Yes
Material: Plastic
Power Source: Battery Powered
Is Discontinued By Manufacturer : No
Product Dimensions : 5.51 x 2.99 x 2.01 inches; 5.12 ounces
Item model number : ProSensor M150
Batteries : 2 AAA batteries required.
Date First Available : April 7, 2021
Manufacturer : Franklin Sensors
Best Sellers Rank: #2,134 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #6 in Stud Finders & Scanners
#6 in Stud Finders & Scanners:
Customer Reviews: 4.5 4.5 out of 5 stars 3,405 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Dec 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Best studfinder I've ever seen. I tried a couple of others but they weren't giving repeatable results and weren't very good at actually finding studs, which is a problem. The Franklin ProSensor X990 gives me repeatable results every time. Another feature I like is that the leds will begin to turn red in the direction of the stud you're about to go over, and then shows the center led as green when you're in the middle of the stud. Works every time and only takes a few seconds to find the stud. Plus it also has two leds shaped like lightning bolts that light up when there's a power cable in the wall that you're going over. Since I had bought a Teslong Inspect-5ft borescope and had to drill holes in the same wall for drywall anchors, I used the anchor holes to inspect behind the wall and confirmed that in two different walls that there were indeed electrical cables behind the wall. In one case it was easy to expect power due to the wall switch being in that area, but in another, there was no clear outside indication that were was a power cable behind the wall so I was surprised when the Franklin's power indicators first came on. This is now my go-to stud finder since its so quick and easy to use and always on target. Very accurate and very sensitive, but doesn't give false positives, and is even ergonomically designed so it feels comfortable while moving it across the drywall.
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Reviewed in the United States on July 23, 2025 by George C. May
I’ve used a few cheap stud finders over the years and they’re frustrating. They’re basically an educated guess as to where the stud is in the wall, and in some cases they don’t work at all. I got fed up with my last one after it stopped working and thought I would try a higher quality one instead. This works surprisingly well - I love the indicator showing the middle of the stud, and it’s been very accurate so far. By far the easiest and best stud finder I’ve used. I haven’t owned this that long, but I’m hopeful this will be the last stud finder I’ll own. Well worth it for the price.
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Reviewed in the United States on September 4, 2025 by Jared King
Works very well. Seems very accurate for finding the center of studs. Just add 2 AAA batteries and go.
Reviewed in the United States on November 15, 2025 by Tom B.
The Franklin Stud Finder is accurate and easy to use, it quickly detects wood and metal studs, and the live wire detection feature adds an extra layer of safety. The multiple sensors give a clear, reliable reading across a wide area, saving time compared to basic stud finders. The only drawback is that it’s a bit bulkier and pricier than simpler models, but the performance makes up for it.
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Reviewed in the United States on October 13, 2025 by Jason Louis
Super simple stud finder, worked great and so easy. Much better than my older straight line one I had
Reviewed in the United States on November 4, 2025 by Peter Mellor
This stud finder works well most of the time. I’ve only used it through mostly 1/2” and some 5/8” drywall to detect 2” wide wood studs. Five LEDs light up simultaneously to show where a 2” stud is located and when the center LED is in the center of the stud, it turns from red to green, a pretty cool feature. I cannot attest to how well it detects metal studs. The feature to detect live wires was pretty reliable though reliability seems to depend somewhat on how far from the drywall the electrician stapled the wire on the stud. Since I bought this device to primarily detect studs, I consider the live wire detection a bonus. When trying to detect a stud in a location where you can’t center the finder over the stud (such as when you’re looking for a stud right next to a window or door frame), this stud finder will light up the LEDs at the end of the finder but not until the LED moves past the edge of the stud by about a quarter inch. I was able to test all of this on a basement interior wall that had drywall only on one side of the studs - perfect for seeing how accurate this finder is. This stud finder is well made and easy to use and grip with one hand. I do believe however that it might not fare well being dropped on a hard floor (I wasn’t willing to test my theory). The surface that slides on the wall has two teflon-like strips on it that make sliding across drywall very smooth. The unit uses 2 AAA batteries which were not included. It is also always calibrated immediately after turning it on, even if you turn it on before putting it against the wall. Overall I’m satisfied with this device. I believe anyone that has ever used an electronic stud finder with only one or two sensors will truly appreciate the 15 sensors on this Franklin ProSensor M150 / X990 stud finder.
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Reviewed in the United States on August 15, 2025 by Armando D.
The Franklin Sensors ProSensor M150 is a standout tool for anyone tackling home improvement projects. Equipped with 9 precision sensors, it offers unparalleled accuracy by simultaneously detecting the full width of studs, including their center and edges. This feature is particularly beneficial for locating both single and double studs, which can be challenging for other stud finders. The LED display provides clear visual feedback, enhancing confidence during installations. Additionally, the built-in live wire detection adds an extra layer of safety, alerting users to potential electrical hazards behind the wall. With its user-friendly design and reliable performance, the ProSensor M150 is a valuable addition to any toolkit
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Reviewed in the United States on May 26, 2025 by Harris
Amazing how good it works!
Reviewed in the United States on November 14, 2025 by Renee Renee