Laser distance meter

Laser distance meters quickly and precisely measure distances between two points. The start point of the measurement is the set measurement edge of the laser distance meter and the second point is the end point of the beam. The maximum range varies depending on the device and can extend to over 100 m. Digital distance measurement offers many advantages over conventional measuring using a folding rule or measuring tape. Distances can be measured precisely and conveniently in just a few seconds. In addition, depending on the model, the devices can calculate areas and volumes of spaces at the touch of a button, function using a touchscreen and have integrated Bluetooth and camera functionalities and an integrated tilt sensor.

The laser focuses on a target for measurement. The distance meter then emits a laser pulse, which begins the measuring process. The pulse is reflected from the target and received by the photocell in the device. This enables the exact distance to be calculated using the time span between the emission and reflection of the laser. In practice, SOLA uses a process in which the phase change between external pulsing and internal reference pulsing is determined. Only a small surface area is necessary for location when using laser measurement. For ultrasound, it must be much larger in order to enable it to reflect relevant sound waves. Laser distance meters are easier to use and more accurate than ultrasound distance meters, and far more convenient than measuring using a folding rule and measuring tape.

There are a whole range of possible uses for laser distance meters. Laser distance meters are primarily used in the construction industry: be it in construction works, renovations, interior design or in exterior works, laser distance meters are needed everywhere. In a matter of seconds, you can calculate distances, areas and volumes of indoor spaces or check measurements and distances. A wide range of occupations use distance meters, ranging from drywall builders, painters, tilers and floorers, joiners and kitchen fitters to carpenters, bricklayers or even architects and interior decorators.

Laser distance meters simplify the measuring process, save time and are convenient to use when working. Different measuring functions are available to you right away at the push of a button. Distances can be measured and checked and areas and volumes can be calculated in a matter of seconds, all with exceptionally high accuracy, which is far superior to those calculated by measuring tape or folding rule. A further advantage of laser distance meters is that precise measurements can be made alone, without requiring the help of another person. Laser distance meters also simplify measurements in difficult situations, i.e., ‘overhead’ measurements.

The measuring accuracy of laser distance meters varies depending on the device and manufacturer and can usually be found in the technical information or in the operating manual. Often, laser distance meters have a measuring accuracy with a tolerance of +/- 2 mm. This measuring tolerance usually refers to a given distance and increases with greater distances. The majority of SOLA laser distance meters have a measuring tolerance of a maximum of +/- 1.5 mm for distances up to 10 m. The specified measuring accuracy relates to normal measuring conditions. Under unfavourable conditions, e.g., direct sunlight, non-reflective surfaces or measurements on glass or shiny surfaces, may cause an increase in inaccuracy and lead to measuring errors.

As with the measuring accuracy, the maximum distance of laser distance meters varies greatly. Laser distance meters that are used in the construction industry usually cover measurement distances of 20–60 m.