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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FREE 30-day refund/replacement
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.
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Availability:
In Stock.
Arrives
Wednesday, Apr 29
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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
Item dimensions L x W x H: 5.51 x 2.99 x 2.01 inches
Material: Plastic
Item Weight: 5.12 ounces
Style: Compact
Brand Name: Franklin Sensors
Model: ProSensor M150
UPC: 853435004415
Manufacturer: Franklin Sensors
Part Number: FSM15002HD
Included Components: Range
Unit Count: 1.0 Count
Material Type: Plastic
Style Name: Compact
Item Dimensions: 5.51 x 2.99 x 2.01 inches
Item Weight: 5.12 ounces
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 29
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 recently moved and had loads of things to hang on the walls- cabinets, shelves, etc., all of which required a good ‘hit’ on a stud. I invested in the Franklin stud finder to update my lifelong Amish “knocking on the wall” method. I am happy to report that it works great! It has been 100% accurate in finding stud centers, and warning me when electric is nearby. It is very intuitive to use and saved me time and wall damage. I am a 76 year old man and I wish that I had one of these sooner. Highly recommended!
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Reviewed in the United States on December 14, 2025 by W. Bender
Stud finder’s are a tool every person should have in their toolbox, whether you are a tradesman, handyman, or DYI. As for myself, I am handyman and invested in about 3-4 of them. The reason I decided to try this brand is the previous brands would detect a stud but it was hard to find out where the center was. This is very important because when installing or hanging something, you want to be in the center because the item you are installing can dislodge from the stud and cause damage to the home. In my opinion, THIS BRAND IS THE GREATEST and you will not purchase another after using this product. I speak so highly of this product because of its consistent accuracy of detecting the stud and reveals the center. You actually see the light bar detect the edge of the stud, and then as you maneuver the device, it tracks the stud until you notice a green light, which is the center of the stud-mind blowing!!!! I built a simulated wall with studs, electrical wiring, and sheetrock. So, I did not conceal all of the studs with sheetrock, therefore I could witness exactly what the device is monitoring. I placed the device on the sheetrock and maneuvered side to side, as if I am looking for a stud on a finished wall. As, I reached the edge of the stud, the light-bar illuminated red, which indicated the device had detected the stud. As I continued towards and over the stud, the light-bar continued to illuminate and tracked the stud. However, as I reached the center of the stud, there was a green light in the middle of the device. This product revealed the green light 10/10 tries and every attempt was directly in the center….did I hear someone say marksman! Another impressive feature of the product, “MX150/X990 with live wire detection,” there is an amber lighting bolt on both sides of the device, therefore it can detect live wires. To test this feature, I wired an outlet on two different studs and on opposite sides (left and right), So, not only did the green light reveal the center but also the side the electrical wire was secured. Shockingly, 10/10 times, the amber lighting bolt was correct every time I maneuvered the device close to the wire or over the stud. The product arrived in a small box and neatly seated inside a plastic wrapping with instructions and a thank you card. The instructions were easy to read, clear to understand, and imprinted on the bottom of the device. Once, you remove the item from the box, there is a black cover, and on the left side, there are about 3-5 lifted lines. You gently push away from you and don’t go too fast because on the oppose side of the removable cover are slide inserts, which can break if you are not careful. The product is very durable and thoughtfully constructed. So, nothing should break unless you handle the product very aggressively. As the instructions state, the product does not get shipped with batteries, so you will have to purchase or if you have some around the house, you will need (2xAAA) batteries. After inserting the batteries, reinsert the battery cover, and you are ready to go. Above the battery cover, the handle has 3 wavy indents which are purposely designed for your fingers, typically the index, middle, and ring ringers. Below the handle is a small arch with lifted lines, which is designed for seating your thumb. Now, you have a full grip on the device and it will not fall. After, you have a comfortable grip position on the handle, compress your three fingers and you should notice the device do a quick flash of the led bars. After, you will have to test the device. Do so by compressing the device with your three fingers and with the opposite hand, not holding the device, way you index finger under. You should notice the led bar tracking your finger. Your finger simulates a thin space then density, just like a finished wall with studs-Genius! Once the device is able to track your finger, now you can test the device on the walls and find those studs. Just an fyi, the product was thoughtfully designed to operate ambidextrously (both hands). I was able to hang pictures, televisions with brackets, electrical outlets, and basically anything you want to hang on a wall which you will fasten into the stud. Each attempt, the device pinpointed the of center of the stud and I did not have any self doubt. Overall, I am extremely impressed with this product and very happy with the purchase.
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Reviewed in the United States on April 12, 2026 by Maria
This is a really good stud finder but I'm knocking it down a star because it does not come with a battery. I feel like, for the price, they could have included one. Maybe I didn't read the listing when I ordered it but I didn't notice it mentioning that. The sensor itself is very reliable and I've really enjoyed using it. One big advantage it has over traditional stud finders it the multiple lights basically show you the exact width of the stud behind the wall so there's no guesswork when it comes to deterring where the edges are. It feels good in the hand too so I think it will last me quite a while. Recommended.
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Reviewed in the United States on March 19, 2026 by Steven Dempsey
Works better than any other stud finder that I have used. Very precise and easy to use.
Reviewed in the United States on April 21, 2026 by Kurtz Fam❤
I have used this stud finder multiple times throughout the house for DIY projects, such as mounting a stair rail to the wall, wire shelf bracket holders, and foldable brackets. It has, without issue, helped me find studs and reliably mark the middle of the stud for screwing or nailing. The multiple LED marks help easily determine where a stud is and where the center of it is. It also helps with finding potential live wires, as the electrical sensor will light up if it potentially detects a wire running near it. The only issue might come down to user error if you are not accustomed to finding potential stud locations and rely solely on the device. One should make sure there isn’t a possibility of something else being behind the wall, as it will detect but not identify the item it is marking. -Simple to use -Lightweight and portable -Accurate stud finder -Good value for the price; if you can find it under $40, buy it.
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Reviewed in the United States on January 5, 2026 by Vinny
Great stud finder.
Reviewed in the United States on April 21, 2026 by Stinkybuttpottymouthlover
Awesome stud finder that is very easy to use, read, and is very accurate when finding centers and sides of studs.
Reviewed in the United States on March 15, 2026 by Carson