Аннотация:Electrical resistivity, conductivity and potential are fundamental soil properties directly related with the density of mobile of electrical charges. Unlike other soil properties, electrical parameters can be easily, repeatedly, and reliably measured in situ and in laboratory with various geophysical instruments; therefore, are universal soil characteristics useful for mapping and monitoring. This review provides a brief introduction to modern portable geophysical instruments of direct current (LandMapper) and electromagnetic induction (Geovizor and AEMP-14). The theory, applications and future of system integrations with RTK GPS and mobile UAV/UAS platforms would be discussed.