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🔍 Find your studs, avoid the shocks, and nail every project like a pro!
The Franklin Sensors ProSensor M150 stud finder features an industry-leading 9-sensor array for unparalleled accuracy in detecting wood and metal studs up to 1.5 inches deep. Its intuitive LED display reveals full stud width and irregular configurations, while built-in live wire detection ensures safe drilling. Made in the USA, this lightweight, battery-powered tool requires no calibration and works instantly on various wall materials, making it the go-to device for professionals and DIYers seeking reliable, fast, and safe stud detection.









| ASIN | B0917TH83L |
| Best Sellers Rank | #1,011 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Stud Finders & Scanners |
| Brand | Franklin Sensors |
| Brand Name | Franklin Sensors |
| Customer Reviews | 4.6 out of 5 stars 3,928 Reviews |
| Included Components | Range |
| Item Dimensions | 5.51 x 2.99 x 2.01 inches |
| Item Weight | 0.32 Pounds |
| Item dimensions L x W x H | 5.51 x 2.99 x 2.01 inches |
| Manufacturer | Franklin Sensors |
| Material | Plastic |
| Material Type | Plastic |
| Model | ProSensor M150 |
| Output Type | Digital |
| Part Number | FSM15002HD |
| Sensing Distance | 1.5 Inches |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | construction, home improvement, DIY projects |
| Style | Compact |
| Style Name | Compact |
| UPC | 853435004415 |
| Unit Count | 1.0 Count |
W**R
Amazing!
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!
M**A
Unbelievably Impressive
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.
K**❤
Great stud finder
Works better than any other stud finder that I have used. Very precise and easy to use.
T**G
Handy Tool For Finding Studs
Works pretty well, and the electric warning does a good job at picking up on wiring running along studs. Used it to mount a wall rack holding 70~ lbs of equipment, and the sensor made it easy to find the very center of the studs. Nice little product, but it feels a little cheaply made. I'm pretty certain it would break if it took a decent fall or two.
K**N
A stud finder with great user design
Love this stud finder! Someone was paying attention to design for users and I appreciate it. The full row of LEDs across the top is much better than the small LCDs or tiny leds of other stud finders, and the horizontal orientation maximizes the usable space. Furthermore, it takes 2 AAA batteries instead of a stupid 9V! Love it! I put in my rechargable AAAs and it works flawlessly.
V**Y
Does it's job perfectly
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.
J**O
Easy to use and very accurate
Works great
S**R
Works great! Easy to use
Great stud finder.
R**Y
Great
Why is Franklin products so hard to get a hold of in Europe? .. this device is everything I wanted for a stud finder
A**R
Den bästa jag haft
Fungerar fantastiskt. Rekommenderas starkt!!!
E**R
Much better than other stud finders
I’ve tried a few stud finders before and this one is much better and far more accurate. It detects the full width of the stud rather than just the edges, which makes it much easier to see exactly where to drill. Very simple to use with no complicated calibration, just place it on the wall and move it across. The display lights up clearly when a stud is detected. Overall a very reliable tool and a big upgrade over cheaper stud sensors.
G**A
Avis détecteur
Pas efficace pour toutes les détections (chevrons).
M**K
Uncannily good: don't waste your money on anything else.
I've had a few studfinders (Stanley, Zircon) and they have been completely useless. So useless, in fact, that I would say it would be more accurate to just throw a dart blindfolded at the drywall and drill there. Every finder I have had has been a mess of beeping, calibrating, false positives, and not knowing whether what you've found is something you should or shouldn't drill into. Maybe I'm just too dumb to use them, and that would be fair enough. What I can say is that I recently had a wall built, and I took the time to photograph and measure where the studs were before the drywalling was installed: none of my existing meters came anywhere close to detecting where the studs actually were. Enter the Franklin Sensors device. No beeps, no calibration, doesn't seem to care if you happen to have a hand resting on the drywalling etc. You stick it on the wall and you turn it on. That's it. I tested it on the new wall that I had built, and it found every stud exactly where I knew it was because I had photos to prove it. I also found that the Franklin was able to detect the metal studs used to hang ceilings from with great accuracy, and that, together with wooden studs in the walls, is all I need. Finally, a real advantage of the Franklin is that it shows the exact thickness of the stud, and you can see where it starts and ends. None of this uncertainty about whether you are finding the start, end or centre of the stud. As I said above, perhaps it's my lack of competence with other units, but this thing just works and that suits me just fine.
Trustpilot
2 weeks ago
3 days ago