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🔍 Find your studs, avoid the shocks—drill smarter, not harder!
The Franklin Sensors ProSensor M210 is a professional-grade stud finder featuring 13 patented sensors for unmatched accuracy and a live wire detector for safe drilling. Its wide LED display reveals stud centers and edges simultaneously, scanning up to 4.3 cm deep through drywall and various wall materials. Made in the USA, this durable tool auto-adjusts to wall textures without calibration, ensuring fast, reliable results for electricians, contractors, and DIY pros alike.













| Asin | B0917VXLDK |
| Best Sellers Rank | 6,237 in DIY & Tools (See Top 100 in DIY & Tools) 44 in Scanners & Testers |
| Brand | Franklin Sensors |
| Country Of Origin | USA |
| Current Rating | 150 Milliamps |
| Customer Reviews | 4.1 4.1 out of 5 stars (6,121) 4.1 out of 5 stars |
| Item Dimensions | 19 x 8.5 x 8.4 centimetres |
| Item Weight | 273 Grams |
| Lower Temperature Rating | 32 Degrees Fahrenheit |
| Manufacturer | Franklin Sensors |
| Manufacturer Part Number | FSM21012HD |
| Material | Plastic |
| Maximum Supply Voltage | 3 Volts |
| Measurement Accuracy | ±1.5% |
| Model Number | 317740851 |
| Mounting Type | Wall Mount |
| Output Type | Digital |
| Sensing Distance | 4.3 Centimetres |
| Specific Uses For Product | Wall Drilling Jig Electrician |
| Style Name | Compact |
| Upc | 853435004491 |
| Upper Temperature Rating | 110 Degrees Fahrenheit |
User
⭐⭐⭐⭐⭐ Accurate, Fast, and Worth Every Penny
The Franklin Sensors ProSensor M210 is by far the best stud finder I've owned and I’ve owned a fair few. Unlike traditional stud finders that require constant calibration, this one is incredibly easy to use—just place it on the wall and it instantly shows the full width of the stud with its multiple LED sensors.It's accurate, reliable, and has saved me a lot of time hanging TVs which I do professionally. The wider detection area gives me much more confidence than models with less sensors. Once the stud is found, the red lights illuminate. After moving the finder left and right across the stud a green light illuminates to show the centre. Brilliant!The build quality feels solid, the grip is comfortable, and the display is easy to read. Even if you're not a DIY expert, this tool makes locating studs simple and stress-free.If you're looking for a dependable stud finder that just works, the Franklin Sensors ProSensor M210 is absolutely worth the investment. Highly recommended!
User
Fantastic bit of kit!
Really fantastic piece of kit! I needed to put up quite a few hand rails and this made finding the studs easy and to my surprise it even worked through the bathroom tiles, well worth the investment!
User
Convenient to use but not accurate enough
The design concept if good for making mutiple lights to detect the width of the stud. It is also convenient to use for no need to calibrate. However, it does give confusing reading and signal which does not make me confident enough to drill holes if I need to drill into a wall with unknown interior structure. However, if you already know there is only wooden stud and one or two main wires in the wall and you are unsure about where are they, the product can help. But if you are worrying about there are multiple wires and pipes inside the wall, likely you need a more accurate one.
User
Works well I couldn’t have hung a telly on a stud wall without it
Really works well worth the. Money
User
Make sure you BUY BATTERIES
Seems ok, its a bit disappointing to spend almost £60 on a stud detector, which doesn't come with batteries.
User
Accurate, sensitive, very easy to use.
Best stud finder I’ve ever used! Very easy to use, display is super clear, even has its own little pencil!
User
Unreliable, lights blinking without purpose, no batteries included
Is a very expensive light toy ,unreliable, and comes without batteries. Returned next day.
User
Reliable Results
This studfinder just works. I used this for wooden studs behind plaster walls.Precise, super easy to use. Requires no calibration.
User
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.
User
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
User
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.
User
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
User
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.
Trustpilot
3 weeks ago
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