An NFC-enabled device configured at least in part as an integrated circuit, the integrated circuit including a controller and a plurality of capacitors. Laser diode pumps are optically coupled to the array of fibers for amplifying the wavelengths through the array. At least one of the measurement or injection electrodes is placed in a borehole and presents an outer surface that is cylindrical and electrically conductive. A spacer flange for connection to a motor spacer is formed on the gear mechanism housing.