Milwaukee 2291-21 M12 Sub-Scanner Detection Tool Kit

This is the best stud finder I have ever used. Detects both wood and metal studs. I recently used it to locate the frame work in my camper which has aluminum studs. Works flawless. Excellent product.

this device is not accurate at all,i put plaster board as a sample and placed copper pipe and live conductor behinde,it shows wrong all the time.i bought bosch d tect 150 sv,i is much better than this toy. this is only a toy but nothing else.it is waste of money.

Not for the average do it yourself person, but works well when you learn how to properly use it. Can mistake fire breaks for studs.

I am a big fan of the Milwaukee M12 line. I have the copper cutter, PVC cutter, and the impact driver. All of which work well. I thought having a good quality stud finder would be a nice addition since I owned the batteries and chargers already. THIS TOOL DOES NOT WORK. It is consistently 3/4" to 1" off. I know this for a fact because I tried to use it on 1/2" sheetrock to hang plumbing in a mechanical room. Fortunately I had marked the floor and taken pictures before the drywall went up. It is supposed to mark edge of stud-- not close enough.

In general, this is a pretty decent stud finder. We have had pretty good luck with it on steel studded walls, but have had much less success with walls which contain both steel and wood. Sometimes the readouts from the unit leave you scratching your head wondering what is really behind the wall since you have to switch modes and recalibrate for deep scanning or shallow scanning, wood or metal...and the results are rarely consistent. In short, you need to have a pretty good idea of what is in your wall already, and this will work well. Ideally, we were hoping for a tool which could detect unknown wall compositions since this is typically what we face in our business. If we have an architectural drawing with studs labeled, we don't need a stud finder at all!

Excelent product... Work very well and it's ergonomic todo handle... Just make sure to put the battery well on the chárter, that's all!

Poor value for money does not find studs as they claim charger blew up first time it was used had to mess about sending back for a full refund do not buy this

Through out many years in the construction trade I have seen / tried many different wall scanners - this Milwaukee sub-scanner is the best yet ! At first , cost is high but when you check out all it can do such as being very accurate stud finder in dense walls ( 5/8 drywall with 1/2 plywood ) . this unit finds those studs ! The other features it has will be tested In the near future projects .