BOSCH GLL50-20 50 Ft Self-Leveling Cross-Line Laser, Includes Integrated Magnetic Mount & 2 AA Batteries

I love this laser. Wish I would have gotten one years ago. Great for all projects.

great quality ,great price, same laser level cost much more at a store

It's pretty easy to use, but it seems to work best when the laser is at the same height as the location you're measuring, so if it's up high, you'll need a ladder or something.Pro's: Redlight is ok to follow, green may be better, I don't know. It's very accurate when set up correctly.Cons: Light is bright at the point closest to the wall, but goes dim to the right and left as the distace from the laser increases. I was trying to measure a big panel across a 16 foot wide wall and the light intensity at the edges was quite poor.The lack of a way to make micro adjustments to move the projected light was an issue for me. Lost a lot of time trying to get the light where I wanted it.Overall it got the job done, but I wonder whether a less expensive one would have been just as good.

I bought this because I had to drill two holes in my wall, about 67" AFF and about 70" apart. Their measurements to the ceiling were 1/4" different. Was the floor unlevel or was it the ceiling? Laser level to the rescue.Here are some lessons learned and comments on other reviewers' critiques:• This thing seems accurate when placed about 10' from wall as measured with a Stabila 6' level. (I know, I could have used the Stabila for my job, but I wanted the laser.)• This is not like a flashlight, i.e., you can't hold it in your hand and shine it at any height on the wall and see a level line. You have to raise it to the height where you want the horizontal line to appear. This is where a tripod comes in handy. I used an old Amazon Basics 60" adjustable camera tripod. It worked great. The crank on the tripod lets you raise/lower the level precisely.• The laser mechanism rides on a gimbal. If you cock/tilt the laser body and the gimbal doesn't have enough "wiggle room" to keep things level, the laser blinks in warning. People who complain about this behavior are not keeping their laser upright enough. Probably aren't using a tripod.• Finally, and the reason I wrote this review, is the quality of the box — it is great! If you want to put your level away until you use it again at some later date, everything packs neatly and safely back into the box. Just toss that box in a drawer and everything will be kept safely together. It's better than most blow-molded plastic cases you get with tools, IMHO.All in all, with this laser I was able to quickly and confidently mark these two holes and hang a 6' x 4' framed tapestry perfectly. I actually delayed completing the job until I received the laser and I'm glad I did.

Works great. My son had bought a cheaper one and it did not lock in as good. The likes were not study. This one lines up good and stays in place.

I tend to put a lot of effort into trying to get shelves, pictures, and other household projects to be level, so I use laser levels quite a bit. This Bosch unit is nice in that it has a nice clear beam even in daylight. It is also a step up from cheaper units I've used in that it projects a cross pattern for aligning both in vertical and horizontal axes. For example, I mounted a column of shelves on the left side of a wall and wanted another column on the right side. Very easy with this level as I could adjust the vertical line to where I wanted the shelves to be on the right and then I adjusted the cross-hair from a horizontal aspect to line up with the shelves on the left. Easy.You'll likely find that using a tripod is the easiest way to mount this unit for use, though it does come with a handy clip attachment if there is something stationary nearby that it can be mounted to. The clip can be easily removed when not needed.There does seem to be one flaw however. When the device is within 4 degrees of level it uses an internal pendulum to auto-level itself, which is great. Most of the time this is the way to use it. When it is rotated more than 4 degrees, the beam stays on so that you can self-align for more diagonal oriented angles. Again, nice. However if you want to self-align with the laser but want to use it still within 4 degrees of level, there is no way to disengage the auto-leveling feature and just leave the laser on. There are times when I want to use the laser for a straight/perpendicular line but don't necessarily want it to be level with the horizon. There doesn't seem to be a way other than being at an angle greater than 4 degrees. It seems like it would have been easy to disengage the pendulum (which happens when you shut off the laser anyway) but leave the laser on for use.Not something I thought of before I purchased it. Maybe those more handy than me would find this to be obvious or maybe suggest this isn't the right tool for this kind of job but I'm just an amateur when it comes to home projects and spending quite a bit more for a level than I had to, I see this as a downside of using the item.

one of the best, on sale it’s a steal. use 3 of these for i installing or fabricating and it makes your job easier. all the good lasers are expensive. this one is obviously not as precise and as well made but i’ll buy these when they go on sale. take care of them and your laser alignment should be good for a long time. the magnet is good and useful. red lasers oc not as visible as the greens but in a shop setting it works great