Johnson Level and Tool 40-0921 Self-Leveling Cross Line Laser Level Kit Review

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For a wide variety of construction projects the Johnson Level and Tool 40-0921 Self-Leveling Cross Line Laser level kit will never disappoint as it includes each and everything you need. This laser uses its bright horizontal and vertical laser lines to deliver perfect measurements for different interior leveling and alignment jobs such as fixing kitchen cabinets, mounting flat screen TVs, installing windows, designing drop ceilings and so many others hence making it the perfect tool for thousands of professionals including electricians, contractors among others. The laser also features a 360 degree graduated base which accepts various angle layouts. Within +/-6 degrees, the device automatically self levels to deliver improved precision accuracy therefore you can finish up all your tasks with confidence that your results are completely error free. It is designed with a locking pendulum for added safety of the tool’s inner parts and performs continuously for about 12 hours. The Johnson level 40-0921 Self-Leveling Cross Line Laser is appropriate for both indoor and outdoor use.

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What we like;

  • Projects cross line laser; unlike when you are using the traditional lasers, the 40-0921 Self-Leveling Cross Line Laser makes it much easier for you to finish up all your projects without wasting too much time or using too much effort. This cross line laser projects not just one but two laser lines, the horizontal laser line and vertical laser line for to have the perfectly accurate lines and measurements for a wide variety of projects and applications.
  • 100 feet working range; the 40-0921 Self-Leveling Cross Line Laser is directed towards indoor use but the best news about this is that it delivers a really long working of up to 100 feet according to what your lighting conditions are. With such a working range you it is very easy to get accurate measurements even for large scale tasks. If you compared this laser to many others on the market, you will find that this level laser from Johnson level has added advantage of reaching all the way to 100 feet.
  • Ideal for various installation projects; because of this laser’s outstanding versatility it can be used for a very wide variety of projects and by professionals of all levels. Its ability to project both the vertical and horizontal laser lines and ease of use have made this laser very appropriate for interior house tasks including framing rooms, installing kitchen cabinets, fixing windows, installing floor and wall tiles, putting up art pieces or flat screen TVs and so on and so forth. This laser’s efficiency has made it much sought out by carpenters, contractors, builders and electricians among many others.
  • Self leveling performance; now more than ever you work with a lot of confidence about your results all thanks to the 40-0921 Self-Leveling Cross Line Laser’s self leveling performance. This laser is designed to self level automatically within +/-6 degrees for you to always be 100% sure about the kind of results you will be getting. Gone are the days when you would fight with a laser to make sure that it remains accurate all through the process.
  • 360 degrees graduated base layout; the 40-0921 Self-Leveling Cross Line Laser spins with the help of its 360 degree base, the main importance of such a base is to allow easy and quick angle layout.
  • Visual out of level indicator; this laser doesn’t allow you to go ahead and finish an entire project with wrong measurements which is why it comes with the visual out of level indicator. The moment your measurements are out of level, it will immediately let you know so that you can make the necessary corrections before you continue with your project and hence have only accurate results at the end of the project.
  • 12 hours of uninterrupted use; the 40-0921 Self-Leveling Cross Line Laser comes with energy enough to enable it run for as many as 12 hours. This means that before you replace your batteries you will have worked on a good part of your project so you won’t waste money buying batteries so often or waste your on job site time on looking for new batteries.
  • Tripod with adjustable height; you will not find any trouble setting up your laser because it comes with a tripod that you can use to get everything ready for your job. The tripod it comes with has adjustable height therefore you can always increase or cut down on its height depending on what feels most comfortable for you.
  • Lock function; with the lock function, your laser’s pendulum is always perfectly protected from any kind of damage especially during transportation.
  • User manual; the 40-0921 Self-Leveling Cross Line Laser makes it very easy for people who have completely no idea about how to use the device, it comes with a well detailed and easy to read manual featuring instructions on how you can use this tool.

What we don’t like;

  • Only ideal for indoor usage; you will only enjoy 40-0921 Self-Leveling Cross Line Laser’s fantastic performance if you are getting it for indoor use but if you are planning to use it for outdoor projects you will end up disappointed reason being its laser lines are not bright or visible outdoors.
  • Doesn’t rotate smoothly; the 40-0921 Self-Leveling Cross Line Laser features a 360 degree graduated base but the problem with this base is that it doesn’t spin smoothly.


For those of you who want the perfect laser to use on indoor projects, the 40-0921 Self-Leveling Cross Line Laser is definitely what you are looking for. This laser projects horizontal and vertical lines at the same time which makes it ideal for so many projects. It has the self leveling feature which ensures that you have only accurate results by the time you are done with your project as well as the vision out of level indicator to keep you in perfect knowledge of how accurate your levels are. Its locking mechanism helps to keep the device very safe during transportation. it is a very simple yet very efficient tool.

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Vanilla Farmer, Amazon Retailer & Tech Researcher. Yosaki is my personal blog but I'm working on some big tech project back doors. I will keep on posting various topics on things I have knowledge about.

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