The new inclinometer carbon probeallows to perform a set of measurementsof direction and inclination of boreholesin 3D space.The new carbon fiber body makes itlight and easy to handle in difficultcontests, for both horizontal and verticalboreholes, till 30mm diameter width.Instantaneous visualization of resultsacquired along borehole, showing itsaltimetric and planimetric trend withrespect to the initial position for afast and accurate crossing boreholepositioning9.