Franklin Sensors ProSensor M150/X990 9-Sensor Stud Finder, AC Wire Warning | Accurate Wall Scanner With Live Wire Detection, Wood and Metal Stud Detector, Made in the USA, Shows Full Width of Studs

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.

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.

Best studfinder I've ever seen. I tried a couple of others but they weren't giving repeatable results and weren't very good at actually finding studs, which is a problem. The Franklin ProSensor X990 gives me repeatable results every time. Another feature I like is that the leds will begin to turn red in the direction of the stud you're about to go over, and then shows the center led as green when you're in the middle of the stud. Works every time and only takes a few seconds to find the stud. Plus it also has two leds shaped like lightning bolts that light up when there's a power cable in the wall that you're going over. Since I had bought a Teslong Inspect-5ft borescope and had to drill holes in the same wall for drywall anchors, I used the anchor holes to inspect behind the wall and confirmed that in two different walls that there were indeed electrical cables behind the wall. In one case it was easy to expect power due to the wall switch being in that area, but in another, there was no clear outside indication that were was a power cable behind the wall so I was surprised when the Franklin's power indicators first came on. This is now my go-to stud finder since its so quick and easy to use and always on target. Very accurate and very sensitive, but doesn't give false positives, and is even ergonomically designed so it feels comfortable while moving it across the drywall.

Works pretty well, and the electric warning does a good job at picking up on wiring running along studs. Used it to mount a wall rack holding 70~ lbs of equipment, and the sensor made it easy to find the very center of the studs. Nice little product, but it feels a little cheaply made. I'm pretty certain it would break if it took a decent fall or two.

Simple, reliable, priced right.

Having had a basic Zircon unit from around 2005, it was at times frustrating to use with concerningly inconsistent results. You'd get a beep, then pick it up and try to place it over a stud bay, reset it and try again, and then there would be nothing where the prior hit was. Studs would seemingly move as if something changed in The Marix or the house was dynamically rearranging itself. Then I bought a magnetic stud finder (Hanson) which is great at finding drywall screws. That simple solution works most of the time, but not always: I have a home office that's a finished room in my barn. Inside the barn is an old carriage house that someone built a barn over without tearing it down. The history is pretty interesting to me. My office is in the old carriage house part, and to run new outlets, Ethernet, hang shelves, etc, I obviously needed to know where the studs are. The walls out there are an odd combination of weirdly spaced studs and there are old window openings that have since had studs placed in them and have been walled over. Some of the studs are 14" apart, some 18", a couple are standard 16" and there's a 20ish" stud bay in one spot. I'd love to know what the history is there. Maybe an inhebriated farmer with a hammer? In some places there's some kind of exterior cladding and siding in there with a gap between it and other material. Some of the drywall was hung from this intermediate material rather than the "studs," (using that term loosely) so using the screws as a guide with the magnet was useless. The interior wall looks completely normal, but finding studs in the mess beneath it was an absolute nightmare. In desperation, I bought this device. While unsurprisingly, even it struggles with the scenario above, I was able to map out the odd placement of studs in the wall, including the outlines of old windows. That was still a tedious process, but was infinitely easier with this device. I love that you can see the thickness of the studs, since some of the lumber in there is pre WW2 and is actually true to dimension. You can also find doubled up studs easily. The tech has come a long way over the years and in my opinion this is absolutely worth the money.

Very nice. Much better than the old stuff finder I had. Glides along the wall and you can accurately and quickly tell where the middle of the stud is. Also tells you if an electrical line is behind the wall so you are most cautious. Highly recommend. Take 2 AA batteries which we always have, instead of a 9V which my old one used.

This is my second Franklin sensors, stud finder. They both perform well at first until they didn’t. I upgraded to this model and was pleasantly surprised initially then the readings were starting to get inconsistent. I always make sure to put fresh batteries in them. And I’ve changed the batteries out multiple times when the inconsistencies started. I’m wondering if certain frequencies, electrical, magnetic, or other, can possibly throw off the calibration? Like I said the first couple of times I used both of them. It was extremely accurate and I was very happy and confident with the performance. I also keep them in a protective hard case and do not throw them around or abuse them. Then came the time that the readings got wacky and I started missing studs, which is never fun in somebody else’s freshly painted brand new wall when you’re trying to hang an expensive art piece.

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.

Precise and very good price

Very happy with my purchase. It's the perfect tool for a part time DIY enthusiast. It's easy to use, and I really like the green light feature that lets you know when you're in the center of a stud. The product itself feels well made and of good quality.

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