Franklin Sensors ProSensor M150/X990 9-Sensor Stud Finder, AC Wire Warning

This stud sensor is exactly what I needed! We live in a 118 year old Craftsman style home, and the interior walls are still finished with the original lath and plaster. The written instructions for this stud finder say that there's basically a 50/50 chance that it will detect wall studs, depending on the thickness of the lath and plaster. Well, I'm 99.99% sure that it did find the stud which I need to hang a VERY heavy wall mount, swing arm mirror in the bathroom. The very center light node lit up green amongst the rest at red, and the green one would turn red with the slightest shift to either side. Having a 23.5 year career as a designer/draftsman of residential construction documents, I'm pretty sure that it found the stud center, which is fine. So, firstly, I made sure it was a stud by moving it vertically as high as I could reach with the single light remaining green (which was not easy). It did remain green as I moved it vertically. The second confirmation that it's a wall stud is that, knowing for certain that the 2x4 wall studs & 2x8 floor joists in this early 20th century home are framed at 18 inches on center, and the mark measures at 18 inches from the outside corner. (Currently building codes require the typical framing of studs and joists to be at 16 inches on center, again that's for typical framing.) Thirdly, I'll drill a test hole for final confirmation. The instructions are easy to follow. One annoying thing in the design is that the two triple A batteries are positioned end to end in this unit, so they will buckle where they meet. Reslly?? I had to hold them down so they wouldn't spring out and break a window and fly over into the next county! 😂 I held them down where they meet until the cover touched my finger and I took my finger out at the very last second before closing the lid. It worked fine, but I'm thinking I'll need to wear protective glasses for when I open the cover, as most likely, at my age, I'll forget the situation!! 😂😂 I've never seen this type of battery positioning! Anyway, being the age of this home, nothing is typical when it comes to modern maintenance & modifications, so my expectations for this stud finder were low, but it delivered and I couldn't be happier with this stud finder! It's worth every penny!! I highly recommend, my friends!!

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.

Great stud finder. Needed a good stud finder for my old 1913 house. Thankfully most of it has been updated with drywall - but the studs are not always standard so this has been invaluable. Highly recommended well worth the extra few bucks over a standard unit.

Quick and right on the money Love it!

This product works really well! I am impressed how well it finds electrical wires in the wall. Super easy to use and the quaility of the stud finder is good.

Great tool and seems to be spot on to find the studs. I like how it has multiple LEDs to "see" the entire stud. Makes it easy to find the center.

It's only been a day since I've had it, but it's exactly what I needed. No frills, no fuss, no headaches, just works. Shows the left and right edges of a stud and of course, the exact middle of it. Shows where electrical lines may be, so you don't accidentally shock yourself. If there's any updates, I will post it.

Great tool! I used it in my shower to install grab bars and it really made the studs light up.

Why is Franklin products so hard to get a hold of in Europe? .. this device is everything I wanted for a stud finder

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.

fungerar kanon!

This stud finder is an absolute must-have! The Franklin Sensors ProSensor stands out with its incredible accuracy, thanks to its advanced multi-sensor technology. It clearly shows the full width of studs, making any mounting task straightforward and precise. A standout feature is the integrated live wire detection, which adds a crucial layer of safety, giving you peace of mind when drilling into walls. It's incredibly user-friendly, automatically adjusting for depth and material, allowing it to scan up to 1.5 inches deep. For anyone tackling home projects, this tool simplifies the job, ensures accuracy, and prioritizes safety. Highly recommended!

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.