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🔍 Find studs like a pro—never miss a beat or a wire!
The Franklin Sensors ProSensor M210 is a USA-made, professional-grade stud finder featuring 13 patented sensors for unmatched accuracy. Its wide LED display simultaneously shows stud edges and center, while built-in live wire detection ensures safe drilling. Auto depth adjustment up to 1.7 inches works through drywall, plaster, and tile, making it a versatile, durable tool favored by pros and DIYers alike.













| ASIN | B0917VXLDK |
| Best Sellers Rank | 4,242 in DIY & Tools ( See Top 100 in DIY & Tools ) 27 in Scanners & Testers |
| Brand | Franklin Sensors |
| Country Of Origin | USA |
| Current Rating | 150 Milliamps |
| Current rating | 150 Milliamps |
| Customer Reviews | 4.1 out of 5 stars 6,057 Reviews |
| Item Dimensions | 19 x 8.5 x 8.4 centimetres |
| Item Weight | 273 Grams |
| Item dimensions L x W x H | 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 | construction, home improvement |
| Style | Compact |
| Style Name | Compact |
| UPC | 853435004491 |
| Upper Temperature Rating | 110 Degrees Fahrenheit |
A**R
⭐⭐⭐⭐⭐ 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!
M**N
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!
S**M
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.
A**R
Works well I couldn’t have hung a telly on a stud wall without it
Really works well worth the. Money
N**S
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.
S**N
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!
A**L
Unreliable, lights blinking without purpose, no batteries included
Is a very expensive light toy ,unreliable, and comes without batteries. Returned next day.
O**K
Reliable Results
This studfinder just works. I used this for wooden studs behind plaster walls. Precise, super easy to use. Requires no calibration.
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.
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.
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
5 days ago
1 month ago