Franklin Sensors Prosensor M210 Stud Finder With 13-Sensors, Wood & Metal Stud Detector/Wall Scanner, Live Wire Detection, Ma
4.6 | 5,194 ratings
Price: 59.97
Last update: 02-02-2026
About this item
- Higher accuracy, better technology: with 13 patented sensors, the M210 detects studs more accurately
- Safety first live wire meter: the ProSensor M210 includes a live wire meter for worry-free drilling.
- Shows the full width of studs: the wide LED display shows the stud's center and edges simultaneously.
- Deep scan always on: the ProSensor M210 auto adjusts for material, texture and depth up to 1.7".
- Durable: #1 rated by consumers and pros, the ProSensor M210 stud finder is both accurate and durable.
Top reviews from the United States
- JoeBest stud finder I have ever usedI really hate using other electronic studfinders, but this one is dead simple and works consistently. I got it mainly so I could easily find the center of a stud, detecting electrical wires is a nice bonus.
- Anthony C TaylorWell worth the moneyI love this scanning tool. Scan through plaster and laugh walls first time using it hits 7 studs out of seven no false reading so far I give it more stars if I could
- GXplayerEasy WorkWorks great. Had a floating shelf and it was easy found the studs really easy. Now the pencil and level made it so easy. I recommend this tool to anyone.
- Greg O.Accurate and Precise. Only works with alkaline or fully-charged rechargeable batteries.I own an older model of Franklin Sensors' stud finder, and I bought this newer model to increase the precision of my stud detection. The newer model has more LEDs with reduced spacing between LEDs, which makes it easier to identify the exact center of your studs. The new model appears to be very accurate and precise. I also appreciate the small bubble-level, which helps you keep the tool horizontal during usage, further improving the accuracy.
I'm just giving it 4 stars not 5 for 2 reasons:
1) The older+cheaper stud finder from Franklin Sensors seems to function fine with NiMH rechargeable AA batteries that are charged > 1.3 volts. This means that if your AA batteries are charged half-way, the older model will work fine. The newer model doesn't light up unless the AA batteries are >= 1.4 volts (maybe 1.35... maybe 1.38... I don't know exactly). The NOMINAL voltage of NiMH rechargeable AA batteries is 1.2 volts. In practice, high-quality AA NiMH rechargeable batteries (Sanyo Eneloop, Amazon Basics, etc) can reach a voltage slightly above 1.4 volts when they're fully charged. At 90% charge, the voltage generally drops somewhere between 1.3 and 1.4. I've used this stud finder with freshly-charged high-quality NiMH AA batteries, and it works great. On one project, I then tried to use it again the next day with those batteries after maybe just 20 minutes of usage the prior day, and it wouldn't turn on. After I recharged my batteries to 100%, it continued to work.
Alkaline AA batteries have a nominal voltage of 1.5V. I don't like to use disposable batteries because I find them to be wasteful. I have lots of devices that will function fine with rechargeable batteries that have a voltage > 1.2V or 1.3V. It's unfortunate that this stud finder can only work with batteries charged > 90%. For me, it just means that I have to fully charge a pair of batteries before I use the tool. Since I know this, it's OK, but it's inconvenient. I think I would still use the new one that requires fully-recharged batteries (>90%) over the older one that will work fine with moderately-charged batteries (>50%) since the new one is more precise and has the convenient integrated level. Still, Franklin Sensors could have added a voltage regulator circuit to this tool that would have allowed it to operate totally fine with batteries >1.3V, which would have made it much more convenient to use. If you're a professional remodeler who needs to find a lot of studs over the course of an entire day, you probably need to bring a spare pair of AA rechargeable batteries plus a charger to your job site and possibly recharge and swap the batteries at least once per day to use this tool.
2) They really could have done a better job designing the cover for the battery compartment. It's actually better on this model than the older model, but neither are great. It's cumbersome to open the battery compartment, and, over time, the cover can get loose while you're using the tool. They could have designed the cover with a simple hinge and thumbscrew or some other locking mechanism that would be less prone to loosening over time.
It's still a great tool. Despite the shortcomings, it's still the best stud finder that I've ever used. I mounted some slat walls and shelf brackets in a storage closet in my house, and I was able to easily find the center point of the studs behind my drywall with this stud finder. - MNBGreat toolWorks great for finding studs and electrical wires. Does not work on ICF houses
- Dennis ByramThe only stud finder that can be called a deep stud finder.This is the correct stud finder to purchase! After trying two different stud finder that claim the ability to be a deep stud finder only to fail. This stud finder used a better technology than any other on the market. If you have more than one layer on the studs then purchase this. Easy to use. No calibration needed.
- SoftmangoGreat easy to read stud finder.I have Zircon stud finder which was coming up with confusing results in this one particular area which has a lot going on behind the walls. Because of the varying stud results I purchased this stud finder which detects studs and power. It is easy to use, the LEDs make the stud width easy to determine and mark off the center. The power finder is accurate too. It handled my little job perfectly and I'm pleased with the purchase.
- Amazon CustomerGood productWorks as well as described. Very accurate and sturdy.