The correctness of the construction of certain structures is checked by building measuring instruments. Among the most common parameters that determine the stability and safety of a building, one can single out the horizontal and vertical positions of its components. And if earlier bubble theodolites and levels were used to check deviations, today such tasks are solved using a laser level. It is a good helper not only in professional construction, but also in ordinary repair activities. For example, it is often used in finishing works, when constructing partitions, wall cladding, etc.
The device and features of the laser level
Devices of this type are based on LED elements that emit a luminous flux. As the released wave propagatesconverted into a laser beam. While still in the apparatus, he bypasses the optical system, which includes a lens and a prism. In this part, it is projected onto the target object. The beam construction system can be very different. For example, the simplest models are horizontal and vertical laser levels, which are more often used in the domestic sphere. More complex devices cover circles of 360 degrees. The more rays, the easier the marking is applied, and several cross lines form entire systems of projections in different planes. At the same time, laser levels differ in the principle of operation and design features. There are two types of such devices:
- Linear. This design is also called prismatic, since the light beam is directed perpendicular to the prism. Streams of light are projected strictly onto the object or plane on which the device is oriented. As a result, a point or several lines are positioned on the surface, allowing complex marking.
- Rotational. Models in which the design contains not a stationary, but a rotating LED. It is he who allows you to build circular 360-degree projections by focusing the rays on the lens. The marking is built one-time along the perimeter of the entire premises or within the construction site, which makes it possible for several specialists to work simultaneously.
Regardless of the type of device, a fundamentally important criterion for high-quality marking and checking the position of the object will be the reliable installation of the tool body. For convenience, it is recommended to use self-levelinglaser levels. This is a good version of the level for domestic needs, when a response to the slightest deviations of 3-4 degrees is required. It is rather difficult for a non-professional to independently detect such errors, and the built-in compensator of the device will notify the user of possible deviations.
What are the characteristics to choose a tool?
Among the key operating parameters of laser levels, first of all, it is possible to single out the range. This characteristic determines how far, in principle, the device can project rays. The radius varies from 2 to 20 m for household devices, and from 50 to 100 m for professional devices. However, highly specialized levels can work at distances of about 300 m.
The next important characteristic is the amount of error. It must be emphasized right away that the so-called accurate levels on LEDs are not the most correct in terms of line construction. This is the name of the home levels that build only one beam in a straight line. But projection accuracy as such is expressed in millimeters through an error ranging from 0.8 mm to 0.2 mm per 1 m. Accordingly, the smaller this value, the more accurate the instrument readings.
If you plan to use the level on the street, it is better to evaluate in advance its capabilities for working in different temperature conditions. For example, if the manufacturer specifies an operating range of 5 to 40 °C, then the device can be used either indoors or outdoors in warm weather.weather. But there are also models with special coatings, which are also allowed to work at temperatures as low as -10 °C.
Now you should get acquainted with the rating of laser levels from 10 positions, which represent the best representatives of this group of measuring instruments.
10. Geo-Fennel-Ecoline EL 168
Compact, lightweight and mobile device with a fairly wide functionality. Its capabilities are enough to perform tasks on the construction site, and for operational marking within the premises. The working distance is average, 20 m. The beam can be switched in different directions, while counting on high accuracy. Since the device has a very modest performance, the battery lasts for a long time - two small energy blocks provide up to 24 hours of continuous operation.
If we do not take into account dubious versions of the device from little-known Chinese manufacturers, then this will be the cheapest laser level in the segment - its cost is only 1.5 thousand rubles. A close competitor of about the same level from a major manufacturer is Bosch PLL 5. This version is estimated at 2.3 thousand rubles. and is also compact. The difference lies in the fact that the PLL 5 model belongs to high-precision levels, but at the same time, its range significantly loses to the projection range of EL 168 - 5 m versus 20 m.
9. ADA Phantom 2D Set
ADA is one of the most respected brands in the measurement equipment segment, as evidenced bythe high quality of its products. The Phantom 2D Set costs 6,000 rubles. and will be of interest to finishers who need to build in two planes with a self-leveling function. Using the device, you can build horizontal and vertical lines separately or together. An ergonomic keyboard is provided for control, and physical handling is simplified thanks to a wide range of equipment with a wall bracket, tripod and special glasses. Owners praise this model for its ease of use with ceramic tiles - especially when laying on the entire wall. The only serious drawback relates to the weak beam brightness, which appears at a distance of more than 15 m.
As an alternative to the "tiled" level, you can offer a cheaper version of the X-Line HELPER 2D, the cost of which is 3.5 thousand rubles. The advantages of this version include wide functionality with auto-alignment and many indicators. Which laser building level is better - Phantom 2D Set or HELPER 2D? They have almost identical technical and operational characteristics and a noticeable difference lies only in cost. But, again, the basic quality of ADA products is well worth the overpayment, so with the expectation of long-term operation, you can prefer the Phantom 2D Set.
8. DeW alt DW 083 K
This model represents a class of point levels. For 8 thousand rubles. the user receives a lightweight mobile device that allows building markings within 180 degrees from one point in one place. According to users, DW 083 K is durable, has protectivedevices like a pendulum blocker (effective for transportation) and convenient one-button operation. The range for a household accurate level is also acceptable - 30 m. Only a limited number of rays can alert, but for home use they are usually enough. The model is suitable for those who want to have a reliable, simple and versatile tool for accurate marking in the household.
7. Bosch GRL 300 HV
Professional rotary apparatus - by the way, one of the cheapest in its class (8 thousand rubles). The model is provided with an electronic error compensator in the range of 5 degrees. In addition to horizontal and vertical lines, the GRL 300 HV can create special point projections, plumb lines and complex marking contours. The device is unusual in that it is a laser level with a green beam. This color is due to the use of more powerful optics, which also characterizes the accuracy and clarity of the line being laid. The projection will be clearly visible even in daylight conditions. This device is also beneficial for those builders who work on large sites. Using a special receiver LR 1 Professional, the range of the device can be increased up to 300 m. The package also includes mounting hardware with a branded holder WM 4 and remote control RC 1 Professional.
6. Yermak 659-023
Budget model from the class of rotary levels, which is suitable for both professional and domestic use. However, the range of the order25 m still imposes restrictions on the use of the device in large spaces. Reviews note that the device scans the site quite quickly and automatically informs about the slightest inclinations of the plane. In automatic mode, lines are also marked horizontally. In the rating of laser levels with support for rotational action, this is the most affordable version, since its cost is 3 thousand rubles. Another thing is that in terms of accuracy, Ermak is inferior to analogues from Bosch and DeVolt. The difference will again be offset by a more favorable price tag. One way or another, the device turned out to be light, maneuverable and durable. The owners point to good insulation with case protection, which is not afraid of dirt, dust and water.
5. Condtrol XLiner Duo
The level of the middle price category, the cost of which is 8.5 thousand rubles. This is an optimized version of more advanced models in the XLiner family of laser levels, but it has a significant advantage - a range of up to 50 m. Using the special Condtrol distance detector for levels, this distance can be doubled. Also, the device has a protective coating of the body with rubber pads, can work with turning angles up to 160 degrees and project clear and bright beams at the same time. As for the shortcomings, the ergonomics and functionality of the device are still focused on a narrow specialization. This is the optimal laser level for walls on a large construction site where vertical and horizontal lines are required. The model is suitable for professional builderscapital facilities, but for everyday life it is too massive and overloaded with redundant features.
4. Bosch GSL 2 Professional
The vast majority of laser levels are produced with the expectation of building lines on vertical planes. In this case, the manufacturer offers a tool designed specifically for working with floor coverings. In laying the floor, this device allows you to evaluate the evenness of the base, adjust the finishing material, check the quality of the screed, etc. In its class, this is a good laser level both in terms of technical performance and in terms of the efficiency of working functions. The disadvantages include only a high price tag of about 30 thousand rubles. But it also justifies itself, since the filling provides for modern electronic control, control is carried out with a remote control, and the kit also contains glasses for a clearer visibility of the rays.
3. Condtrol XLiner Combo
Another development of the eminent manufacturer of measuring tools, Condtrol. This is the professional version of the multi-prism level, which, in addition to the horizontal and vertical beams, also allows you to guide five intermediate lines. Moreover, the beams are formed both in one complex and separately - depending on the tasks. Users note that this is a good laser level for outdoor work. It is unpretentious to operating conditions - including humidity and temperature conditions. The positive qualities of the model include a wide range of equipment, in whichincludes holders, case and a special target for directing the beams.
2. KAPRO 3D 883N
Decent quality model of a rotary laser level, which in the range of 360 degrees can direct two vertical and one horizontal line. The range in this case is 60 m, but only if the receiver is connected. The device has well-implemented automation with all the possibilities for self-leveling and minimizing errors without user intervention. Overall, this is a good 360 degree laser level for outdoor work. The manufacturer has provided the necessary accessories for operation in harsh conditions. For example, the basic set contains a hard case, a mounting bracket, a target and batteries for stand-alone use of the device.
1. Bosch GRL 300 HV
Premium version of the laser level, which is considered the best device for industrial applications. The primary and main purpose of the model is to measure the slopes of surfaces, both indoors and outdoors. Regarding the quality of work, users emphasize high precision, ergonomics, autonomy and reliability. It is important to note the power supply system, which is based on a NiMH battery cell. If necessary, it can be replaced with a power supply, which is convenient when working in an area with access to the network. Special attention deserves the functionality that corresponds to the 3D laser levels from the ADA Cube line. In particular, the model is provided with an informativeoption "anti-shock", which notifies the vibration of the device. You can control the device through the remote control or LCD display with hardware buttons. The protective properties of the GRL 300 HV are implemented according to the IP 54 standard, that is, the design is provided with insulation from water, dust, shock, etc.
Laser Level Operating Instructions
Before starting work, the condition of the device, the charge level, the integrity of the case and the correctness of the readings are checked. It is advisable to test it for accuracy in different modes before use. Then you can proceed to the installation of the device. You should prepare the installation site in advance, as well as mounting equipment - brackets for fixing and a tripod (if necessary). How to set the laser level? To do this, the following procedure is performed:
- First of all, the stillness of the device must be guaranteed.
- The direction of projection is cleared - there should be no obstacles in the path of the beam.
- The structure should be placed at the maximum allowable close distance.
- Before the start of measurements, the horizontal level is leveled. To do this, use a mechanical bubble level, automatic compensator or built-in level.
Next, you can proceed to setting up the device. At this stage, it is important to emphasize the complexity of preparing some models. Sometimes, fast operations require mobility, which will allow you to quickly perform measurements with frequent transitions around the site. Which laser level is best suited for such purposes? It is desirable to use point models likeBosch GPL 5. This version is productive and at the same time functional in working with the construction of straight lines. But even in this case, control by the user during alignment will be required - deviations should not exceed 10-15 degrees. If necessary, the adjusting screws on the body can be used for manual correction.
Rotational models have two main settings - according to the speed of rotation of the beam and the angle of its delivery. Experts recommend that even when using horizontal lines, turn on the vertical axis. It will provide more correct readings with the ability to control the main projection. But, in this case, more energy will be required for the workflow, which is also not always acceptable. To facilitate the work, you can use targets or rails on which the beam is fed.
What else is considered in choosing a device?
Selection criteria should be considered comprehensively, since there are many technical and ergonomic nuances in the operation of the device itself. Of course, the main parameters of the device operation, such as range, accuracy and functionality, are put at the forefront. But also don't overlook the ease of use. For example, today's Bosch levels show off the benefits of an intuitive yet simple control system to the greatest extent. Here, attention is paid to physical ergonomics - mounting options, compatibility with clamps and tripods.
In outdoor work, the protection of the hull plays an important role. As the review of laser levels showed, the models initiallyare oriented to application in the conditions of the room or construction site. The second category of devices is provided with universal dust and moisture protection with a shock-resistant case.
In conditions of remoteness from mains power supply sources, the operating time of the device without recharging will also be significant. As a rule, in the mode of activity of 1 line, devices can work for 18-24 hours. If 2-3 beams are connected, then the time is reduced to 6-12 hours. The method of power supply itself is also very important. In addition, 3D laser levels with a range of up to 20-30 m consume a full one in an average of 5 hours. Batteries and different types of accumulators manifest themselves differently with temperature changes. For example, at sub-zero temperatures, there may be delays in scanning the level that works on lithium-ion cells. On the other hand, such batteries are considered optimal in terms of performance.
As for manufacturers, the rating names the largest representatives of the segment, whose products are distinguished by high-quality element base and technological level. Giving preference to these models, you can count on durable operation without the need for repair operations.
