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🔍 Find your studs, not your doubts—ProSensor M210, the pro’s secret weapon.
The Franklin Sensors ProSensor M210 is a top-rated stud finder featuring 13 patented sensors for superior accuracy, a live wire detection meter for enhanced safety, and an intuitive wide LED display that shows stud edges and centers simultaneously. With an auto-adjusting deep scan up to 1.7 inches, it adapts seamlessly to various wall materials and textures. Compact, durable, and made in the USA, it’s trusted by professionals and DIYers alike for reliable, worry-free wall scanning.








| ASIN | B0917VXLDK |
| Best Sellers Rank | #272 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 5,867 Reviews |
| Included Components | Range |
| Item Dimensions | 7.5 x 3.35 x 3.33 inches |
| 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 Degrees Fahrenheit |
| Manufacturer | Franklin Sensors |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Supply Voltage | 3 Volts |
| Measurement Accuracy | 1.7 |
| Model | 317740851 |
| Mounting Type | Wall Mount |
| Output Type | Push Button |
| Part Number | FSM21012HD |
| Sensing Distance | 1.7 Inches |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | Wall Drilling Jig Electrician |
| Style | Compact |
| Style Name | Compact |
| UPC | 853435004491 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 110 Degrees Fahrenheit |
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.
J**R
Function
Very nice stud finder. Seem accurate. Good value. Have a nice small level built in. Easy to use. Seem to be made well making it durable. Functions as expected. Have not had to replace batteries Good value for your money
K**N
precise and easy to use
Before purchasing this product it seemed low technology to me because it has no screen etc. But it works better than the ones with screens. This product is best and easy to use compared to products at a same proce range.
D**E
Easy and precise.
This stud finder was amazing. It found the center of stud which gives the full strength to the wood.
T**R
Works fine, identifies energized wiring.
Works fine, will reliably pinpoint the center of a stud, also detects energized wire but does not pinpoint their location. Does not identify dead wires or metal. I tested it on an acoustic engineered wall with one sheet 5/8", one sheet 1/2", a layer of Green Glue, AND a 3rd layer of 1/8" mass loaded vinyl. The wall was 2x6 framed with 2x3 staggered studs. It was able to easily pinpoint the facing studs through all three layers. It also sensed the non-facing 2x3 studs which are set back 4 full inches from the surface scan, it but could not zero in on them. So be cautions with your readings until you get a feel for it. My two complaints is the size, which will take up some room in a tool belt -- and it's not a product you can freely toss in in a box with hammers and pry bars. It needs to be treated like an instrument with the protective zip pouch (yes it's good quality), or maybe a double layer bubble envelope. Green color is easy to find in the clutter. Has a secret hidden pencil that I keep forgetting about. Bubble level is mounted on the battery cover which slides off left to right.
K**N
Best Stud Locator
Seriously, this thing is a game-changer! I was able to find every single stud in my walls without any hassle whatsoever. I didn't even bother with the instructions, it was that intuitive. This tool is legit and I'd tell anyone looking for one to grab it immediately. Highly recommended for sure!
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.
S**D
Best stud finder to date.
This stud finder is awesome, it's the first one that has been the most accurate, hasn't missed a stud yet.
A**X
Very very good
Prefect
Z**Z
Produit prometteur mais peu efficace en pratique
Toute irrégularité du mur affiche des détections fantômes. Quand à l'alerte de tension, elle est très fantaisiste, il ne faut pas compter dessus pour repérer (ou éviter !) des câbles. Ayant testé plusieurs détecteurs muraux les autres sont pires. Celui-ci donne des détections exploitables dans les cas simples, par exemple les rails derrière un BA13. Mais si c'est un placo-phonique (double épaisseur) ça ne marche déjà plus bien.
U**C
Immer die Betriebsanleitung vor Kauf und Benutzung lesen!
Habe den Scanner an einigen Objekten ausprobiert (getestet) und für Gut bis Sehr Gut befunden. Die Bedienungsanleitung sollte man vorher genau lesen. Würde ihn wieder kaufen. Er passt gut in meine Scanner Sammlung als Ergänzung!
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.
Trustpilot
1 month ago
5 days ago