I guess that I really don't want a Laser Level. What I want is something that I put on a ruler that is across the cockpit and it reads the angle. That angle should be 0 degrees. If the angle is not 0 degrees, I would like to push a button and have the "level" consider that new angle to be 0 degrees. Next I want to go under the airplane and put the "level" against the landing gear and give me a reading relative to the horizontal reading that we just took but off by 90 degrees. Then I will adjust my gear legs to be 90 degrees relative to the relatively horizontal airplane.