Hi! I'm so sorry we missed your comment. We haven't designed the M210 for plaster, but many customers have reported success with it. We have another stud finder, the ProSensor MAX, which works through plaster. It's available at Lowe's.

Hi! It could be a programming issue. Can you give us a call at (208) 918-2403 or email us at [email protected] so we can help?

Hi! Yes, we actually just added the MAX to Amazon last week! Here is the link: amzn.to/3YvMQiZ

It is available at Lowe's.

The ProSensor M210 has this now. The green center indicator is a recent update we made to the model, so older units will not have this.

dumb idiot

Hi Dan! The MAX does not detect water or electricity. Our M210 and M150 models have live wire warning but don't detect water.

​@@franklinsensors8246what's the best sensor is it the max?

Thanks for pointing that out. Yes it doesn't find steel studs. Steel is more dense than wood so it will sense it even more deeply. As a for wires, I think you are just used to bad stud finders because if you know where the center and edge of the studs are, you know where the wire is. It is either to the side of the stud or if it is running horizontally through the stud, there will be plates in front of those areas, preventing you from penetrating through the stud and into a wire. If you still want more confirmation about the location of wires, I highly recommend the M210. You'll love it. I hope you have a better day. 🙂

@@karengarcia1256 well i looked up the m210 and that doesent detect steel… these are so expensive yet not even a all in one device like most

No. They can stay in. Some people do like to remove them but it isn't necessary.

It doesn't matter, just as long as the button is pressed.

The button is just one piece so it doesn't matter where you press it. Just press and HOLD the button to operate.

@@karengarcia1256 Thankyou

Same. Other sensors have been great. This one was a complete waste of money. Literally useless.

Mine works.... Dunno what you guys are on about. Just admit you don't know how to use it?

@@GreigaSP just brought one and didn't work had to return

I'm from a small town that is about an hour away from town. I get it. That's frustrating. I know it doesn't make it better right now, but we are working to get all our units changed to be able to accept rechargeable batteries but it is still a good 12-18 months out. I'm sorry this was so frustrating for you.

@@karengarcia1256 I do appreciate your response.

Stop buying rechargeable junk. Alkaline batteries are dirt cheap.

What you are exactly on center the center green LED lights up.

@arthur0enns while I'm supposed to love all my product children equally, the M10 is my least favorite. It is our only unit that requires calibration and human nature gets in the way of accuracy. I'd recommend an M70 or better.

Yes sir it does.

Lets talk more about the M150 live wire feature. The Live Wire Warming, the lightning bolds on either side, will show the presence of live wire in the area. You asked if you can work around live wire. We will always recommend shutting off power before penetrating the wall. Safely first. Yes it will only light up on live wires. If you turn the power off, the wire warning will not illuminate. It is good to know that wires are usually of two places, either stapled to the side of the stud running vertically (so it is out of the way) or if the wire is horizontal holes are bored through the sides and threaded through. Usually this is at about shin height. I hope that helps.

More sensors will always give you a deeper, more accurate reading, but there can be a happy medium to what you are looking for. For compact I'd recommend the M70, with 7 sensors is small and MIGHTLY! If you want to optimize size and performance, I'd recommend a 9 sensor unit - the M90 or the M150. With the 9 sensor models you get enough width to clearly see two stud widths while still being compact. I hope that helps.

When in comes to sensors, yes more means better. If size is an concern I'd recommend the M70 or M90. With the M70 you can see the full width of a single stud plus a little white space which adds to the level of confidence. The M90 will show single and double stud width and it is more compact. A great unit. One of my personal favorites.

@@karengarcia1256 or just get a bigger tool box to accommodate 🤣

I'm not sure who told you they eat batteries. They last longer than other stud finders. We are working on being compatible with Rechargeable but they aren't ready quite yet. In the end, we are still the easiest more accurate stud finder on the market.

Why not just use rechargeable AA or AAA batteries? That's what I do. Franklin has AA and AAA models. I have electronics that I occasionally use. Like the stud finder, laser level, angle finder, etc. And I like that they use standard AA or AAA batteries and not a built in rechargeable that I have to plug the whole unit in. I always have a set of AA/AAA batteries fully charged and waiting to be used for my tools.

@@iambridgingyou While rechargeable batteries are in our future, our products are currently not able to take rechargeable batteries - unless they are 1.5 volt rechargeable batteries. There is no plug.