rangefinder: finished the meter that not going well, or the need to take the marks on the ground when it is too short, imprecise measurements, or doubts about the accuracy of the measurement. it's a small investment for sure but it's worth it. It was super precise measurements, it does not scratch the furniture / walls by making the measurements, and then it's instantaneous! It can measure lengths but also the surfaces (volumes I never needed). it went to Beyond my expectations. laser level: then, I'm more reserved. the bubble level will never be specific (in a small little bubble level). and this is not a device that finds itself horizontality. therefore mistrust. also to fit onto a wall, it comes with a small base that can pin / nail it to the wall. then the level is magnetized. So it makes the job at the expense of qlqs small holes that seem acceptable. I would say that by combining its use with the rangefinder can be checked if one has a really good horizontal (Sioux cunning). I was originally party to buy the rangefinder when I saw the promo pack I took; I recommend because I think that the return on investment is / will be realized.