DEWALTLine Laser, Self-Leveling, Black, 3-Beam (DW089K)

You can go less expensive and still get pretty good quality. However, nothing with a beam this strong (at least from the solid red lines options). Indoors it can span any room from end to end. For a the extra cost you get: stronger beam, a 3rd plane, fine tune micro-adjustment for the vertical alignment, a magnetic mount, and a another type of clamp mount for more versatility. Very convenient and endless uses for little effort. For any type of construction, it adds instant value and will pay for itself quickly. Even as a weekend warier it is worthwhile. You can even level pictures all at the same time for the entire room in one setup. I used it last weekend to install a new door frame and was able to get the layout dead on. It doesn't make me any faster but it makes my work look better.Fine-Tune for Vertical Alignment is worth the cost alone:I never before realized until using it, the micro-adjustment vertical alignment is an absolute must for certain applications. Say you are putting in a tile floor - you need to control the vertical alignment plane to dissect on the correct source location as well as the target location. What are you going to do, move the tri-pod, move the device to zero in on your target? There is no moving to fine tune for the target without effect the source location as well. There is no way to control and fine tune for one variable without throwing off the other. You end up spending more time than is warranted or learn to live with in-exact results. This is when the vertical find adjustment becomes a life saver - you can tune the target location without moving or impacting the source location. Now your 1/8" variant becomes that much more precise because you can at least factor out error in proper placement. I wish it also had another fine-adjustment control for horizontal plane for those times when you don't use a tripod but that is minor grip in comparison to the vertical control.

Great tool. A little pricey

Great Visibility, super bright. Allows a lot of versatility due to shooting 360. Super great value. Light weight. Uncanny performance.

As an A/V company we install speakers, access points and other items in and on ceilings in clients homes. The laser with the cross lines that project onto the ceiling allow us to line up with and square with ceiling cans or other existing fixtures.Not having to measure 15' or more to a wall while standing on a ladder 12' off the floor makes jobs go much quicker.Also like the ability to rotate the lines without having to move the unit, it takes a few moments for it to stable use after you move (self leveling)Because we are residential the magnetic clamp is not of any use.The only issue is the tripod socket on the bottom of the unit is not on a flat surface so mounting it to a quick release tripod adapter does not work out.Not that big of issue, just bought a cheap tripod.Mich less expensive then having a helper on the job just to hold the other end of the tape.

first of all this is also a laser plumb bob! at the time i purchased this nothing online had really specified it being able to be used as a laser plumb bob... it makes a cross hair on the floor and on the ceiling which is what i needed more than any of its other features, I almost did not purchase this until i watched an online video of someone using it as a laser plumb bob! that's the great thing about this laser its like an all in one laser! it does wall grid square,ceiling square and can even be used as a giant floor square! it shoots lasers everywhere everything has a laser on it! and they are all square,level and plumb!what i purchased it for mainly was to do custom wall framing what i mean by that is like for basements and other areas where you cant really stand up a pre built wall and it saves hours and hours of time! occasionally other projects the beauty of this laser is its so fast to set up( like 2 min) so it becomes more practical than the old way of doing things before lasers came out... can be used as a chalk line too!what i noticed:the magnet on this thing could pick up a car! its good in a way but in another way its so ungodly strong im always afraid the bracket holding the tool will break trying to remove it from a metal surface...the case it comes in is awesome! perfect and has room for spare batteriesthere is no pendulum lock i have no idea why they didn't include it every other laser dewalt makes has it but this one so why?I have no idea why some people say its not calibrated mine was within 1/8" at 30' or even less im sorry if that happened to you