Choosing a rotary level for construction; why do you need a device?

Laser level Hilti PM 2-L

- automatic laser plane builder from the famous Hilti brand. The Hilti PM 2-L laser level projects a laser cross in front of the device, that is, horizontal and vertical lines intersecting at 90°.

A little hint!

Before buying a level, I recommend that you first consider laser levels from Aliexpress. You may be surprised, but this is where you can now buy very high-quality and functional models at an excellent price, so do not neglect this opportunity.

The ray scan is very good. The horizontal scanning angle is 180°, the vertical scanning angle is 135°.

The projection range of laser beams is about 10 meters. But at the same time, the working range depends on the degree of illumination; the lower the brightness of the illumination, the farther the projected beam will be visible.

Projection accuracy is average, 3 mm at 10 meters. The Hilti PM 2-L laser level is intended mainly for indoor work.

The PM 2 L linear laser will perform all professional tasks in finishing and repairing premises, such as leveling walls, windows, door frames, installing ceilings, floors and a lot of other tasks.

The PM 2 L laser level is distinguished by high quality and bright lines, but still the price is clearly too high.

There are a lot of cheaper laser levels with similar functionality, albeit slightly inferior in quality to Hilti.

Operating principle

As we mentioned above, the operating principle of a rotary level is similar to the operation of a point type. But still they have many differences, so it makes no sense to compare them. Rotary devices are used for outdoor measurements. Spot ones are used for internal measurements. They are not protected from dust, dirt and moisture, the dim beam makes it difficult to detect the projection, and the range rarely exceeds 20 meters.

Let's look at the advantages of a rotary level over analog models:

• the ability to take measurements all 360 degrees around the level;
• measurement in 3 different planes;
• long measurement range, which can reach 1000 meters;
• the ability to control the device using the remote control;
• relatively light weight, facilitating operation.

There are also some drawbacks. However, there are not many of them, and they are not so significant. Firstly, the longer the projection distance, the higher the error. And secondly, the price is quite high. Rotary laser levels are considered the most expensive type. But the cost is fully compensated by the many useful features.

Before you start taking measurements, the level must be placed correctly. It can be mounted on a tripod or rod. The first is used outdoors, the second - inside buildings. The second important step is alignment. It is produced according to the built-in water level. Expensive professional models are equipped with an automatic leveling function. Now you can turn on the level.

The measurement is performed by the interaction of the LED, lens and electric motor. When electricity is applied between semiconductors, photons are produced. They go out through a special hole in the buffer zone, building a beam. A lens is needed to focus this beam so that it does not scatter at a distance. The laser plane is created by continuous rotation of the LED around its axis. Its rotation speed is 600 rpm.

The laser device allows you to perform the following types of work:

• laying tiles;
• installation of drywall;
• wallpapering;
• electrification works;
• furniture manufacture.

In some cases, a level can replace other surveying instruments, such as a theodolite. It can be used to measure horizontal angles on the ground. However, the results obtained are not so accurate. Professional builders simultaneously have in their arsenal all the necessary measuring instruments.

The best line laser levels

Linear levels guarantee a horizontal, vertical beam, diagonal, plumb line or crosshairs. With the help of such a tool, you can control the mounted structures and detect height differences. Manufacturers separately offer household and industrial prototypes with different technical characteristics and operational features. The list includes the most favored products by customers.

Vahigcy ZH-SL202 laser level

Automatic level with new markings to improve the efficiency of construction/repair work. There are many measuring functions provided here, among them horizontal/vertical, as well as orthogonal measurement with an accuracy of +/-0.5 mm per meter of distance is in demand. The locking function allows you to protect the unit during transport. Performing tasks is possible at room temperatures from -10 to +40 degrees. The beam is launched over an angle range of 110 degrees.

Advantages

• High accuracy;
• Compactness;
• Works on mains power, AA batteries;
• Pendulum safety lock;
• Inexpensive price tag.

Flaws

• Flimsy packaging box;
• No batteries.

According to reviews, this Chinese laser level with a 360-degree scale is a good purchase for this price. Among the positive characteristics, the most often noted is the locking of the pendulum to protect it during transportation, a good set, high accuracy and cost. The downsides may be batteries that are not included, as well as a wrinkled, unreliable box.

Kkmoon AK435

Mini portable floor laser level, red color, compact size. It can be used for home and industrial purposes. Works in the mode of one perpendicular, one horizontal line and one bright point. Provides floor and wall installation. Rotation angle – 360 degrees. Technical characteristics include automatic leveling, an alarm signal for unevenness, a maximum bright beam distance of 2 m, an error of +/-2.5 mm for every 5 m. Power supply is possible from the mains or AA batteries. The instrument is delivered in a special bag.

Advantages

• Safe box;
• Compact, light weight;
• Storage case;
• Price;
• Buzzer that detects irregularities.

Flaws

• Lack of tripod;
• Nasty squeaking sound when positioned unevenly.

For the price this is a good purchase. It is intended more for home use, since the error is slightly higher than that of other nominees, operating distance, size, weight, all this is not suitable for industrial facilities.

Moonbiffy AA42

Another meter that detects any irregularities and errors. This model has 4 functions. Firstly, it produces a straight, perpendicular, angular line. Secondly, it marks precisely the required areas at an angle of over 45 degrees. Thirdly, there is a linear level, that is, a measuring tape 2.5 m long. Fourthly, there is a laser level at the edge of a 15 cm long scale. The power source will be an AG13 battery. The permissible error is only 0.001 mm. There is no tripod included; the device is placed on the floor to operate.

Advantages

• Light weight, compact;
• Maximum accuracy with virtually no error;
• Multifunctional application;
• Ease of control;
• Fast automatic setup;
• Price.

Flaws

Unreliable packaging.

There are fewer complaints about this model than other nominees. Usually they relate to the fact that the product arrives in a crumpled, unreliable box with no protective cover. But unlike other sellers, several sets of batteries are included here for autonomous operation. Accuracy receives the best ratings, making the device suitable even for professional use.

How to order a level from China?

It is completely safe and very profitable to order a professional laser level directly from China!

The only thing is you have to wait a little. Those who took advantage of this opportunity were very satisfied with the quality and functionality of the levels for disproportionately less money.

You can choose a high-quality and inexpensive laser level with free delivery from China on one of two trusted sites:

The best prices!

Lowest prices! (When going to the site search, enter - Laser Level)

The ordering process is very simple, anyone can figure it out in a couple of minutes. And since in most cases delivery is absolutely free, it all comes down to a simple algorithm - you choose, pay and receive it at your post office or at home by courier.

The best dot laser levels

Among these devices, the best are rightfully considered to be levels from the German manufacturer Bosch.

The choice of models is quite wide, but in terms of price-quality ratio, you should pay attention to GPL 5 and PLL 5, which have all the necessary functionality at an affordable price. The Bosch company has an extensive network of service centers, which will allow you to avoid spending a lot of time searching for them and making trips if the device breaks down.

Bosch GPL 5

A universal point level that produces five beams with a possible deviation of no more than 0.3 mm/m. Two beams are directed up and down, and the rest are forward, left and right at right angles to each other. The device case is made according to IP54 protection class, which allows it to be used in dusty and damp rooms. The measurement range is 30 meters, which is more than enough for indoor environments.

The device is equipped with a self-leveling mechanism, which compensates for installation errors of 5° horizontally and 3° vertically. The device itself can be installed on the floor, mounted on a wall, or used on a tripod.

+ Pros of Bosch GPL 5

1. simplicity and reliability of the design - all lasers are hidden in the housing, there are no other protruding parts;
2. universal holder – the device is attached to any surface in a given position;
3. ability to disable self-leveling;
4. laser dots are clearly visible outdoors in sunny weather;
5. The light weight and dimensions of the device make it easy to move it around the site.

— Cons of Bosch GPL 5

1. The device is powered by three AA batteries (finger-type), but it is not possible to operate from the power supply if the batteries are low;

Bosch PLL 5

A compact and lightweight device that allows you to make precise vertical and horizontal markings at a distance of up to 5 meters with an accuracy of +/- 1 mm/m. The weight of the device is only 0.12 kg, which allows you to easily and securely attach it to the wall, after preliminary leveling using bubble levels built into the body. Power comes from two AAA batteries (mini-AA batteries). The service life depends on the time of continuous operation of the device.

+ Pros of Bosch PLL 5

1. ease of operation - the lower flat side can be easily installed on the wall, after which you can begin marking;
2. the beam length is sufficient for most rooms when working in apartments;
3. mobility – small size and weight are convenient for transportation and carrying around the construction site;
4. can project a point or a line.

— Cons of Bosch PLL 5

1. very limited functionality, since one LED is used - for example, the device cannot mark zenith and nadir (opposite points above and below);
2. There are isolated complaints about poor quality adjustment of bubble levels - to be on the safe side, it is better to immediately check the device upon purchase.

Where can I buy a laser level profitably and reliably?

From the huge number of sites selling construction equipment, it is very difficult for an unprepared person to identify bona fide sellers.

When purchasing devices from dubious online stores, people encounter problems with delayed delivery or poor-quality service, and thereby reduce the level of confidence in online purchases.

That is why we have selected several stores where you can absolutely safely place an online order at the best prices, without fear of being deceived.

1.

2.

3. Good prices

Ideal level

The best laser level, according to reviews, is a multifunctional model with a tripod mount, a durable body and the ability to be mounted on a wall. Determining the search point at a considerable distance is possible if there are five outgoing beams.

It is desirable to have a function to automatically turn off the device when it is in standby mode for more than 20 minutes. The ability to rotate 360 ​​degrees allows you to project markings onto other walls.

Optimal characteristics:

• Projection range is 25 meters.
• Measurement accuracy - ± 0.4 mm/m.
• Duration of work - 15 hours.
• Horizontal plane - 360 degrees.
• The level of protection against moisture and dust is IP54.
• Tripod socket - ¼.

Advantages of laser levels:

• Wide functionality and possibility of application in various fields of activity. High leveling accuracy and 360-degree rotation of the device allow it to be used in geodetic and topographical work.
• Easy to use. Operating modern models does not require any special skills.

The main disadvantage of laser levels is their cost: the more functions a device has, the higher its price.

Below is an overview of laser levels of various categories. The listed models have their pros and cons, allowing them to be used in various fields of human activity.

Frame

As I wrote above, the laser level is made of very high quality. The body elements are made of strong industrial plastic and fit neatly together, without any backlash or cracks.

The case is covered with rubber on the front and rear, which prevents mechanical damage to the device during small falls and slipping, increasing grip on the operator’s hand.

The battery compartment is located at the back of the case. The battery compartment cover is closed with a plastic latch. Losing the battery compartment cover is impossible (unless you break it, of course), since it is secured at the bottom with a pin.

Degree of protection against moisture and dust IP54.

At the top of the PM 2-L laser level there is a button for switching projection modes. On the right side there is a slide switch - the compensator lock toggle switch.

The laser level is compact and quite lightweight, which makes the device convenient for storage and transportation.

ADA Phentom 2D Set

An ideal option for those who do not rely on electronics and want to check the straightness of the drawn lines with their own hands is the ADA Phentom 2D Set laser level with a switchable self-leveling function. Projects the vertical and horizontal planes both together and separately. The selection of modes is carried out via a membrane keyboard. The kit includes a wall mount, a tripod and special glasses. The pendulum locks automatically after the level is turned off, which ensures its protection from damage during transportation.

Advantages:

• Suitable for laying tiles on walls and other surfaces.
• High measurement accuracy thanks to the elevating stand.
• The maximum beam scanning angle is 180 degrees in the horizontal plane.
• Convenient case.
• Possibility of attaching the level to vertical surfaces.

Flaws:

It is impossible to work without glasses at a distance of more than 15 meters due to the low clarity and brightness of the beam.

Application of geodetic skills in construction

When working on drawing plans into reality, you should know what the difference is between the heights of several points on surface areas and the mark that acts as a conditional level. Finding the height difference is called geometric leveling and is performed using a level and special slats.

The level axis has a horizontal position; from the conditional level point there are differences in the heights of the readings depending on the marks on the slats. During operation, each point is located one hundred meters from the point where the level is placed, its level must be measured at least three times, and the arithmetic average value should be taken. Land plot plans are built on the basis of such data. So, a level is needed to determine the difference in heights at measurement points.

Reiki and their description

A leveling rod is understood as a special bar, which is installed vertically at points for measuring heights. It can be made of wood or metal (aluminum).

This rail is about 3-4 meters long, and to make it convenient to transport, it can be folded in half using a special unit. Modern options include a sliding telescopic design.

The sides of a standard rack often have graduations:

• on the front side the markings are made in the metric measurement system;
• on the reverse side - in inches, respectively.

Before starting work, the rod is placed on the lower metal bracket in the center of the measuring point using a special mark.

For the purpose of convenience, there are special handles for holding tools on the point. If the slats are of high quality and are made on the basis of a special alloy of iron and nickel, then they have bubble levels so that the vertical placement of the slats can be controlled.

If the work is at the initial stage of development research, then it is necessary to perform comprehensive modeling of the object in the future in interaction with the surrounding landscape and architecture.

Measuring points are photographed with real scale values ​​transferred as data for various computer programs, so that the object can be modeled in interaction with the surrounding exterior.

Optical level device

This device includes four key elements:

• optical telescope. The principle of its operation provides for free movement in the horizontal plane. The key function of such a tube is that it points the system at the subject;
• cylindrical level. Such a part is a very sensitive device; it is needed in order to accurately determine the orientation of the level relative to the plumb line. You can determine the accuracy of the placement of the horizontal axis by finding the level bubble in the so-called. "zero point";
• a tribrach is a stand for an optical tube with three screws with which the height is adjusted;
• elevation screw - it is needed for unambiguous orientation. To determine the parameter, you need to move the hairline of the device to a horizontal position.

And the design of the latest generation optical levels often includes a built-in compensator. It is needed to support the level in a strictly horizontal position. This eliminates errors that can be caused by even a slight tilt of the device, and geodetic surveying will be more accurate.

You need to choose one or another type of device depending on the accuracy of measurements and the level of work performed.

Tips from the editors of Zuzako on choosing reliable laser levels of various types

When carrying out repairs and construction of any building, experienced craftsmen always use a control tool called a “laser level”. But in order to buy a high-quality, functional and reliable unit, approach your choice carefully and responsibly.

If you are engaged in construction and repair at the household level, then feel free to purchase a not too expensive model, since its characteristics will be quite sufficient for home use. But when it comes to construction and repair on a significant scale, then choose from the units presented in our top, professional section.

When choosing a device, be sure to pay attention to the following characteristics:

• projection error;
• range;
• laser characteristics;
• self-leveling features;
• power supply;
• ambient temperature required for normal operation;
• body security;
• equipment;
• company manufacturer.

As for cost, cheap models are not always of poor quality. You can see this by looking at our rating.

Simple and rotational point models

A rotating laser level operates on the same principle as all others. Moreover, the device is equipped with an electric motor, which allows you to move the device smoother and faster. The units are distinguished by such advantages as the ability to take measurements at 360 degrees, in 3 different planes, and also control the model using a remote control. Choosing a simple or rotational level follows the same principle as the others.

Linear and combined models

Line levels project individual and intersecting lines and planes. Combined models are also linear. At the same time, they are able to project several additional points, like point models. Linear and combined devices are considered the most common models. They differ in functionality, and almost all are equipped with a self-leveling function.

Today, specialized stores offer a wide selection of laser levels. It is impossible to say which device is considered the best. After all, each device is used to solve certain problems. When choosing, the functionality and technical characteristics of the levels play a huge role. If you need a laser level for periodic work, then choose from cheaper models, but for professional work only powerful and functional devices are suitable.

As always, the choice is always yours. We hope that the article will expand your knowledge about laser levels and help you make the right choice.

Happy shopping!

Compensator type

The Hilti PM 2-L laser level is equipped with a pendulum compensator, due to which the emitters are automatically aligned. And magnets installed under the pendulum create an electromagnetic field that dampens the oscillations of the pendulum, and it quickly settles into level.

The self-leveling mode is activated when the toggle switch is switched from the “closed lock” position to the “open lock” position.

The pendulum levels quickly, about 3 seconds. The self-leveling range is ±4° when the device is tilted in any direction.

If this range is exceeded, the line will begin to blink at a high frequency, which will indicate an error, thereby preventing possible costly errors during marking.

In this case, it is necessary to install the Hilti PM 2-L laser plane builder on a more level surface.

If you need to mark lines at an angle or connect dots at any angle, the functionality of the PM 2 L laser level provides a mode of operation with a locked compensator.

To do this, when the level is on, lock the pendulum by switching the compensator fixation toggle switch to the “closed lock” position.

In this mode, the emitters will flash with a frequency of 2 seconds, but the pendulum will be securely locked, and you can safely mark inclined lines without worrying about the safety of the compensator.

When checking the Hilti laser level for accuracy, according to a well-known method, no excess of error was noticed.

Upon completion of work or during transportation, be sure to lock the compensator by switching the toggle switch to the “locked” position and turning off line projection.

Device and characteristics

The simplest laser level is a device whose design includes a cylinder and a telescope with magnification and a sighting axis. Taking into account the location of the object under study, the operator adjusts the pipe. It is worth noting that such a simplified device functions in conjunction with a rangefinder and a rod on which centimeter divisions are applied.

The features and types of the devices under consideration, as well as the requirements for them, are enshrined in GOST 10528-90. According to this standard, each of the laser levels belongs to one of the following categories:

• high-precision with a maximum quadratic error of 0.5 mm per 1 km;
• accurate with an error of no more than 3 mm;
• technical, the error rate of which does not exceed 10 mm.

There is more than a wide range of laser level models on the market. Moreover, they all represent an arrangement of several systems and mechanisms, namely:

• source of laser beams;
• optical system responsible for constructing lines and planes;
• installation device;
• leveling mechanism;
• IP;
• controls (depending on the modification, they can be manual or remote);
• a housing responsible for reliable protection of all elements.

It should be taken into account that targets, as well as receivers and detectors, are used in the kit with the levels. With their help, projections from laser beams are constructed

Another important part of the design is the tripod. It is usually made of aluminum in order to maximize the lightness of the entire structure and ensure sufficient strength

Such characteristics made it possible to simplify the transportation and operation of the devices.

How and which laser level to choose?

When choosing a laser level, they rely on several parameters:

• Price. An inexpensive device without additional functions is suitable for household use. Models with wide functionality are selected for constant work and are more expensive.
• Duration of work. Only electronic devices are capable of long hours of uninterrupted operation. Pendulum analogs operate for 20 minutes and require recharging.
• Type of level. Point equipment guarantees the most accurate measurements. Linear devices are used to create a perfectly flat surface. Rotational levels project vertical, horizontal and inclined planes.
• Projection range. It is impossible to work on large construction sites with a minimum range level.
• Number of projections. For domestic use, a level that forms two intersecting projections is sufficient. Large work sites and workshops require a model with a large number of projections.
• Measurement error. Powerful and functional models have an error rate of 0.3-0.4 mm/m. The error of household appliances is greater.
• Operating temperature range. A significant advantage is the ability to use the level at sub-zero temperatures in open areas.
• Self-leveling. The optimal option is a maximum angle of 5 degrees, the ability to adjust the compensator in a short period of time. High-quality models of laser levels are equipped with a function to turn off the compensator.
• Mounting type. Stable level support is required when operating in open areas. An important parameter when choosing a level is the wall element for installation and the tripod mount.
• Housing protection. Indicated in the labeling. Standard IP54 protection allows you to operate the device in dusty areas and in the rain.
• Equipment. The standard set includes a bag, flat targets, special glasses, battery and charger.
• Design. It does not affect the quality of work, but the ease of use of the device depends on it.

Level - HILTI PM 30-MG.

EVEN MORE PRODUCTIVE AND MORE ACCURATE

There are many factors to consider when choosing a laser level.

What are you building, are you laying flooring, installing drywall partitions or piping and electrical?

Where is the work performed - indoors, outdoors, or perhaps both options are possible?

Answering these questions will help you decide which laser level is right for your application, and Hilti offers a wide range of measuring instruments to suit a variety of jobsite conditions.

The Hilti PM 30-MG multi-line laser level follows on from the well-proven PM 40-MG and features new features that increase flexibility and functionality for indoor applications.

The innovative offset laser plummet design features two green lines that are positioned on the outside of the PM 30-MG to form a crosshair.

This makes it easy to place marking points for laying drywall profiles or channels for pipes and cables.

For precise leveling, a rotating fine adjustment knob moves the PM 30-MG's platform, making it ideal for indoor applications.

The level can operate at a distance of up to 50 m (with a receiver), it is suitable for installing drywall profiles on floors (building right angles), walls or ceilings, leveling suspended ceilings, transferring elevations and leveling pipes, as well as doors and windows.

Advantages

• The most compact device for precise and fast 360° alignment and marking
• Compact design with offset laser plummet and precise adjustment for easy and quick installation
• Rechargeable B12 lithium-ion battery enables marking work within one and a half days
• Out-of-level and low battery warnings prevent errors and unplanned downtime
• Class 2 laser – no special safety precautions required

Applications

• Installing drywall guides on floors, walls and ceilings
• Leveling suspended ceilings
• Transferring elevations
• Vertical alignment of pipes and cables
• Horizontal alignment of electrical outlets, cable trays, radiators and piping systems