This paper represents results of research of possibility of application of molecular electronic technology for the solution of a problem of high-precision detection of a direction on the geographical north. Work of molecular electronic transducers is based on reversible oxidation- reduction reactions to electrodes and on the diffusion of free carrier of charge of electrolyte in the condition of induced convection, arising under the influence of external acceleration (Fig. 2,3, Tab.l). The method of modulation of a signal of the molecular electronic sensor of angular motion is offered. It is based on rotation of sensor around gravitational vector and axe of sensitivity is perpendicular to the gravitational vector (Fig.l). Amplitude and phase of a signal give the information about the magnitude of projection of rate of rotation of the Earth on datum latitude and about the direction on the geographical north. And this direction coincides with the maximum of registrable projection of rate of rotation of the Earth (Fig. 6, 7). The calculated values of required quantities perfectly coincide with their true values within an error (Tab.2). The obtained data corresponds to level of the best modern gyrocompasses. Thus, on the basis of the developed experimental model serial products can be created, which will be capable to solve problem of detection of azimuth of meridian successfully. These devises can be included in various navigation systems.