In the first part of degree I represent properties, operation and method of reading of the electronic theodolites. Than I describe development, structure and operation of the electronic distance meters. In the second part of degree I represent in greater detail electronic tacheometer SOKKIA SET 4010 – description of instrument, tehnical data, represent the menu and handling with the instrument. In the last part I represent standards for testing geodetic and surveying instruments DIN 18723 and ISO 17123, and define practical precision for electronic tacheometer SOKKIA SET 4010.