Acquiring a new rotary laser level is not a walk in the park. It’s challenging. This is especially true if you intend to purchase it for the very first time.

A rotary laser level is a piece of profoundly technical equipment with a vast range of precise measuring tasks in worksites. It is a prerequisite for almost every construction.

So, whether you are a contractor, a DIY user, or a construction worker, you will find a rotary laser level very useful in executing your construction assignments and projects.

Well, there are dozens of rotary laser levels available in the market today. As such, making an informed purchase can be tricky.

We have carried out immense research on the best rotary laser levels for your and other helpful tips that you need to keep an eye on as you make your purchase. Keep reading.

Top 7 Rotary Laser Levels Comparison Table

PictureNameRangeAccuracyRating (1-5)
1. DEWALT DW089LG 12V MAX Line Laser165 feet±1/8" at 200 feet4.7
2. Topcon RL-H5A Horizontal Self-Leveling Rotary Laser2,600 feet±1/16" or 1/8" at 100 feet4.8
3. Johnson Level & Tool 99-006K Self Leveling Rotary Laser System Kit200 feet±1/8" at 50 feet4.5
4. Leica Rugby R620 Self Leveling Horizontal and Manual Single Slope Rotary Laser Kit2,600 feet±1/16" at 100 feet5
5. Spectra Precision LL100N Laser Level1,150 feet±1/8 inch at 100 feet4.6
6. Spectra Precision Laser LL300N-2 Automatic Self-leveling Laser Level1,650 feet±3/32 inch at 100 feet4.5
7. Spectra Precision LL500 Exterior Self-Leveling Laser Level1,600 feet±1/16 inch at 100 feet4.8

Things to Consider When Buying a Rotary Laser Level

Before you embark on buying a rotary laser level, here are key tips to keep at the back of your mind. This guide is equally important to ensure that you take the equipment that is worth the price.

You also don’t want to buy something that is going to break down or develop defects and problems.


Your choice of rotary laser level should operate with absolute accuracy. This will not only ensure that you carry out the appropriate fixtures but also ensure that you achieve the expected results.

Rotary laser levels are way too accurate when compared with spirit levels. +-3 is the expected range of laser level output.

Automatic Vs. Manual Laser Levels

Also called self-leveling lasers, auto lasers perform a finer job compared to manual lasers. As the name suggests, they perform most of the work for you.

So, should you bump into a dilemma where you are supposed to choose between the two, opt for an auto rotary laser level? Also, auto laser levels stop when it comes to a disturbance. This keeps all inaccuracies at bay.

Manual laser levels can carry on even after a disturbance. This will compromise the quality of work. Otherwise, they are equally good when properly set. You also need to keep an eye on every detail of work.

The Type Of Laser Beam

When it comes to rotary laser levels, you will bump upon either the green or red beams. Green beams lasers would be more appropriate than the red ones. The reason is obvious; they are brighter.

With them, you won’t need a laser level detector, especially when executing major projects.

Type Of Usage

Are you going to perform an indoor or outdoor project with the laser level? In this case, different rotary laser levels are designed for different use. You must land on a level that is ideal for your specific task.

Battery Life

Most laser levels are powered by batteries. And considering the strong beams they produce, it translates to immense power consumption. Consequently, battery life is lowered down.

Therefore, read the details of the equipment to ensure that its battery life span is longer.

Top 3 Best Rotary Laser Level Reviews

1. DEWALT DW089LG 12V MAX Line Laser

The DEWALT DW089LG 12V MAX laser level is an all-around rotary laser with unique features tailored to ensure great performance. It has highly customizable features and simple controls.

It is, therefore, an ideal tool for handling projects such as excavations, grading, and even larger construction assignments. Now, let’s get down to its key details.

Key Features

  • Uses green beam technology
  • 12V lithium battery (rechargeable)
  • An integrated magnetic bracket (and a 4-8-inch thread)
  • Its pulse mode is full time to maintain a high level of brightness and extended range to ensure visibility and precision.
  • Water-resistant IP65 debris designed with an over-molded housing.
  • Locking pendulum to protect internal components from potential damage.
  • 1.5mW output power. It is a class 2 laser with great efficiency and convenience.

Why We Recommend DEWALT 12V MAX

We liked this laser level model because of its precision. Also, it is flexible to a wide range of tasks. You can use it to handle many construction projects and other related tasks.

It has a unique 360-degree reference to your worksite making it one of the most accurate laser levels. Additionally, it has a manual system that allows you to manually match the errors and slopes as you work on leveling the axes.

When it comes to controlling the equipment, it is quite simple. This is a cool instrument for huge projects since it is lightweight and easy to control. You can finalize your work in a very short time.

That’s not enough. This laser also has a carrying case. It is a great asset worth its price.

  • Simple to use and operate
  • Very accurate
  • Waterproof and dust resistant
  • It guarantees a long working range
  • It is designed with a self-leveling system
  • Though it is a first-class instrument, we noted some difficulties in reading its LED screen, especially during high sunlight intensity

2. Topcon RL-H5A Horizontal Self-Leveling Rotary Laser

As its name suggests, the Topcon RL-H5A Horizontal Self-Leveling Rotary Laser is an automatic level that is designed for your specific fixing needs. It is a relatively cheap and fine level with high levels of accuracy.

So if you are looking for a rotary laser level to handle a project that extends to hundreds of feet, Topcon is the right pick. It operates at an accuracy of between +-1/16 and 1/8 inches for a 100 feet continuous leveling.

Don’t worry if you have to work on a single axis leveling. Topcon has an alternative manual operating system.

It is a multipurpose tool ideal for site preparation, grading, excavating, concrete preparing, and general construction activities.

Key Features

  • A wavelength of 635 nm
  • Self-leveling to +-5 degrees
  • Waterproof and dust resistant
  • Include laser receiver holder
  • Uses 4 D rechargeable batteries or dry cells

Why We Loved Topcon Laser Lever Model

First, it operates with great accuracy. This is a requisite consideration for perfect results. Also, the fact that it is all-around enables you to handle a wide diversity of construction activities.

Whether you want to do grading, site preparation, excavations, and general construction, Topcon can be used to effectively execute these tasks.

Its laser receiver allows you to carry out fixtures on a vast operating range that extends even diameter of up to 2600 feet. Self-leveling is possible within a range of +-5 degrees.

Additionally, the RL-H5A has a manual single-axis leveling method. You can also work longer on each setup with great accuracy.

Also, the horizontal rotating laser is simple to use. It can re-level itself in case it comes across any disturbances. Finally, it is waterproof to ensure that it withstands even the strongest of water jets.

  • Self-leveling made possible
  • Simple to master and use
  • Highly durable
  • Waterproof and dust resistant
  • Extremely accurate
  • Longer operating hours
  • It may prove a little strenuous to read it in bright sunlight

3. Johnson Level & Tool 99-006K Self Leveling Rotary Laser System Kit

Johnson Level & Tool 99-006K Self Leveling Rotary Laser System Kit is prominent for its fine features including a soft shell carrying case, tripod support, alkaline battery, and high accuracy. Just not to mention its magnetic target and a 13fr grade Rod.

In the meantime, let’s take a deep dive into its incredible features and why it is a solid choice for a laser level.

Johnson level is ideal equipment for a DIY user. And it is one of the most economical options available in the market today.

So if you have some residential tasks that require immediate handling, this is the tool for drop ceiling applications.

Key Features and Specifications

  • Working diameter of +-1/8 inches
  • LED one-sided detector
  • Rechargeable alkaline batteries
  • Drop ceiling bracket
  • Laser glasses
  • Freestanding target
  • Contractor grade tripod
  • Laser wavelength of 625nm
  • 635 RPM Rotation speed

Why We Recommend Johnson Laser Level

It is Ideal for carrying out exterior residential. You can use Johnson Laser Level to carry out leveling forms and footings.

It can also be used to layout retaining walls, grade and excavate, and plant beds among other outdoor fixtures.

High Accuracy

You can use it vertically to layout floors and walls and even in installing drywall tracks. Horizontal layouts include drop ceilings installations and fixtures and leveling cabinets. It is perfect for all these functions.

High Efficiency

Outdoor fixtures can be tedious if you have poor equipment at your disposal. Johnson laser level, however, makes a great difference.

It is light and simple to use for outdoor projects such as setting fence posts, leveling outbuildings, and drainage slopes. Its maximum rotation is 600 RPM making it a versatile tool.

Great Power Output

Johnson laser level is a powerful tool with a power output of 5nW. This ensures that work is accomplished within the shortest time possible and with great results.

  • Saves on time
  • Simple to operate
  • Ideal for outdoor activities
  • Accurate
  • Self-leveling
  • Longer battery life span
  • Durable
  • The LED screen may be a little strenuous to read it, especially when operating under bright sunshine

Frequently Asked Questions

How Accurate Are Rotary Laser Levels?

Accuracy of rotary laser levels depending on the type of laser level you are using. Generally, they are highly accurate for carrying out fixtures in and out of homes. You can trust them to give you great results.

How Do You Grade A Rotary Laser Level?

If you are finding it challenging to grade your new rotary laser level, we have a quick guide here for you:

  1. Firmly set the laser level on the ground
  2. Turn it on and allow some time for it to self-level
  3. Identify and note down its initial height
  4. Put the bottom of the leveling rod at the desired height
  5. Start adjusting the laser detector up and down till a beep comes out

How Do You Calculate The Slope Of A Laser Level?

It is quite simple. You need to convert the rise and run to the same units. Next, divide the rise by 100. This should give you the percentage of the slope.

Why Is Green Laser Illegal?

Green lasers emit very strong green beams that are associated with adverse health effects. As such, most companies are banned in many countries from producing and using them.

Which Is Better Red or Green Laser Level?

Green laser levels are brighter to the human eye and that makes their operation a little simplified and accurate. While this is true, they consume a lot of power.

The prime differentiators between the red and green laser beams lie hugely in the brightness, price, and visibility, and battery life.

Why Is Green Laser More Expensive Than A Red Laser?

The green laser uses powerful green laser beams. As a result, such laser levels are quite expensive compared to their counterparts, the red laser levels. Also, due to their high power consumption, they are expensive to power.

What Is Grade Laser?

Grade lasers, just like basic rotary lase levels are levels with a 360-degree laser beam. The difference is that they have large LCDs where measurements are taken. They also have large measuring ranges and are highly accurate.

How Far Can A Laser Level Reach?

How far a laser level reaches depends on the specific model. On average, standard laser levels can reach from 1000 feet. Some can even reach up to 2000 feet.

What Are The Dangers Of Laser Levels?

There is no denying that laser levels are hazardous to human health. Long-term exposure poses severe damage to underlying organs. Laser levels with high power consumption rates can also cause fires if not monitored.

Are Digital Levels More Accurate?

Needless to say, digital laser levels are way too accurate compared to old models. The main reason is that most of their features are easily customizable, and measurements can be read on LCD screens.

Final Thoughts

Now that you have all information about laser levels at your fingertips, it is time to make an informed purchase. Face your projects with precision, enthusiasm and come out with great results.

Be cautious to stick to maintenance and health guidelines stipulated in your user manual.