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The Franklin Sensors ProSensor M210 is a top-rated, American-made stud finder featuring 13 sensors for superior accuracy, live wire detection for enhanced safety, and a deep 1.7-inch scan that reveals the full width of wood and metal studs. Designed for professionals and DIY enthusiasts alike, it requires no calibration and includes handy extras like a bubble level and pencil caddy, making it the ultimate tool for flawless wall installations.








| ASIN | B0917VXLDK |
| Best Sellers Rank | #344 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Stud Finders & Scanners |
| Brand | Franklin Sensors |
| Brand Name | Franklin Sensors |
| Current Rating | 150 milliamps |
| Customer Reviews | 4.6 out of 5 stars 6,351 Reviews |
| Included Components | Range |
| Item Dimensions | 7.5 x 3.35 x 3.33 inches |
| Item Highlight | High-Accuracy Stud Finder Wall Scanner, Wood and Metal Stud Detector, Made in the USA, Shows Full Width of Studs |
| Item Weight | 11.36 ounces |
| Item dimensions L x W x H | 7.5 x 3.35 x 3.33 inches |
| Lower Temperature Rating | 32 °F |
| Manufacturer | Franklin Sensors |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Supply Voltage | 3 volts |
| Measurement Accuracy | 1.7 |
| Model | 317740851 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Output Type | Push Button |
| Part Number | FSM21012HD |
| Sensing Distance | 1.7 inches |
| Specific Uses For Product | Wall Drilling Jig Electrician |
| Style | Compact |
| Style Name | Compact |
| UPC | 853435004491 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 110 °F |
R**P
Perfect DIY-ers Tool
I purchased the Franklin Sensors ProSensor M210 to speed up finding studs, and it does exactly what it says it will do. The 13-sensor array provides fast and accurate readings, while the live wire detection adds peace of mind. Responsive, easy to use, and took a lot of guesswork out of the job. Great for DIY-ers like me.
B**A
This sensor is worth the purchase.
Really enjoyed the feature of this sensor. I needed to cut a hole in my wall for a washer dryer port and knew there would be some electrical wires around the area I needed to cut out. This sensor not only lit up when I hit a wire it also used small lights to show the stud clearly from edge to edge. Made identifying where to cut so much easier and took the worry out of the process. I would recommend this to anyone!
T**.
Fast, Accurate, and Easy to Use
This stud finder works exactly as expected and makes locating studs quick and easy. The wide scanning area is much more convenient than traditional stud finders, and the LED lights clearly show the stud edges and center, making it easy to mark the correct location. It’s simple to use right out of the box, feels well made, and has been consistently accurate on every project I’ve used it for. Whether you’re hanging TVs, shelves, mirrors, or pictures, this tool saves time and eliminates the guesswork. Overall, it’s a reliable, high-quality stud finder that I would definitely recommend.
P**G
Franklin ProSensor M210 meets and exceeded expectations!
This is the first Franklin that I've owned, and I'm impressed by the capabilities and sensitivity of the sensors. I had my previous one for 10+ years, and when it went missing, I began a search for a new one. My old one was only a stud finder, and finding the center was manual and a guess, at best. At first, I was somewhat shocked at the price, then I read on and discovered that it had features that my "lost" one did not have. I admit, I was skeptical. Figuring I could return it if it didn't meet expectations for the price, I ordered it. After inserting 2AA batteries (NOT INCLUDED), I tried it on wooden studs at home and found it could locate the studs and center them well (and quickly). I also tried the wire detector and found it worked very well, on both vertical and horizontal wires. Pros: works as described in the description, easy to understand and use, sturdy. Cons: no batteries included (minor issue), cost is higher than others (but also has more features), a separate on/off switch would be nice, as it is easy to turn it on by pressing the only one switch to take measurements (carry extra batteries in you toolbox). Would I purchase this again: most definitely. Would I recommend it: Yes.
A**R
Easy to use and foudns studs 10/10
Product works great. It help me find multiple studs and found multiple electric wires. Was easy to read. Very user friendly. Easy to use
S**I
Great stud finder!
Very easy to use! Functions amazingly with the number of sensors and leds! Perfect size and very light. Would recommend!
J**N
Confidence boosting reliable stud finder
So, I've been a heavy diy home renovator for 20 years or so, including entire home remodels. I am constantly looking for a tool to make the job easier. I have always gone back to just knocking on the wall since every stud sensor I've ever owned has been less reliable. I can say after just a few minutes of playing with this sensor on a wall I had opened up a few weeks earlier it is very good. It sometimes shows some misinformation but if you move it back and forth you will quickly know what is actually there and what is just an error. It nicely shows you where the stud is by lighting up multiple lights that are above the stud. As you move it you can see that if they stay in the same spot and don't flicker on and off you know there's a stud there including wider patterns for double studs. This sensor will certainly make you more confident on what is there and allow you to position a hanger or make cuts wherever you need.
K**S
Amazingly accurate everytime
Used this when building my cinema to find studs so I could place my 32 speakers perfectly. This tool is easy to use and is precisely accurate. Compatible with any stud spacing. Fits in tight spaces and durable as hell. I have dropped mine many times and it still works perfectly. Loud and clear signals . Love it . Never had to check twice
A**R
Rises above the pack
Ok, as sensors go this seems an excellent one at a mid range price point. Still haven't quite established why it occasionally flies up a garden path identifying elements which clearly don't exist. But certainly more reliable than many.
D**X
Excellent device. Accurate and well made.
It works as all the videos depict it to. With the ton of LED’s it makes the job easier to see and way easier for a beginner to use. Plus, it has the green light to show the centre of the stud. This model also shows electrical signals within the wall. Again, easy to read and the nature of the meter essentially gives you a signal strength. It’s big, and that may be a drawback and definitely could be in tight areas. But I thought about that and most of the times I’ve ever used a stud finder was in a larger area to hang something that needs space. So no issue for me. The size is nice as it provides a good grip and a spirit level allows you to keep things square. This Franklin works nicely. I can see why people speak highly of it. Whether the form factor works for you or not, the electronic element of it is top tier. It plastic but well made. Takes two AA batteries. I popped two Energizer Lithiums inside it in case I leave it for a while, I don’t want alkalines to leak. I think somewhere it said not to use rechargeable batteries. Recommended
F**E
Détecte bien le bois
J'ai une maison en ossature bois. J'ai acheté ce détecteur pour trouver les montants bois derrière le placo. Cela marche super bien. Mon constructeur avait essayé d'autres marques. Il a été surpris lorsque je lui fais une démo avec celui-ci.
A**O
Excelente producto!
Hasta ahora lo he utilizado para identificar los studs en 3 paredes, si ha funcionado, muy acertado, solo si por precaución hay que validar más de una vez, eso lo hago yo por asegurar que no vaya a cometer un error
K**M
Brilliant stud finder!
Brilliant stud finder. Have used quite a few different cheaper ones over the years and this surpasses them all. Dearer than a lot of others but definitely worth the money. Easy to use and comes with a little pencil to mark your stud centre. Would recommend to others.
Trustpilot
1 month ago
2 weeks ago