Digital levels are modern multifunctional geodetic devices that combine the functions of a high-precision optical level, an electronic device and built-in software for processing the received measurements. The main distinguishing feature of digital levels is a built-in electronic device for taking readings on a special rail. The use of digital levels allows you to eliminate personal errors of the performer and speed up the measurement process. It is enough to point the device at the rail, focus the image and press the button. The device will measure, display the obtained value and the distance to the rail on the screen. Digital technologies make it possible to significantly expand the capabilities of levelers and their areas of application.