Moisture meter for bulk materials comprising: a metallic hopper with walls designed for being filled with the above-mentioned material; a metallic rod installed inside the above-mentioned hopper and fixed in openings (9, 10) made in said walls; a primary transducer formed by an external shield conductor which is the above-mentioned hopper with walls, and a signal conductor which is the above-mentioned rod with the space between them designed for being filled with the above-mentioned material; a first end of the above-mentioned rod serves as the input of the above-mentioned primary transducer; an electronic control unit; a probing signal generator with a control input based on a frequency-controlled harmonic signal generator has a control input connected to the electronic control unit with the capability to readjust the generator in the range of its operating frequencies; a measuring device; characterized in that: the opening at the first end of the above-mentioned rod between the above-mentioned rod and the wall of the above-mentioned hopper comprises a dielectric insulator, and the other end of the above-mentioned rod is connected to the wall of the above-mentioned hopper in such a way as to form an electrical contact between them in the connection spot; a measuring cell comprising a detector connected to the first end of the above-mentioned rod is connected between the generator output and the primary transducer input; the measuring device is connected to the above-mentioned measuring cell and to the electronic control unit making it possible to determine the moisture content by the frequency value on which the minimal input impedance of the above mentioned primary transducer is achieved. a metallic hopper with walls designed for being filled with the above-mentioned material; a metallic rod installed inside the above-mentioned hopper and fixed in openings (9, 10) made in said walls; a primary transducer formed by an external shield conductor which is the above-mentioned hopper with walls, and a signal conductor which is the above-mentioned rod with the space between them designed for being filled with the above-mentioned material; a first end of the above-mentioned rod serves as the input of the above-mentioned primary transducer; an electronic control unit; a probing signal generator with a control input based on a frequency-controlled harmonic signal generator has a control input connected to the electronic control unit with the capability to readjust the generator in the range of its operating frequencies; a measuring device; the opening at the first end of the above-mentioned rod between the above-mentioned rod and the wall of the above-mentioned hopper comprises a dielectric insulator, and the other end of the above-mentioned rod is connected to the wall of the above-mentioned hopper in such a way as to form an electrical contact between them in the connection spot; a measuring cell comprising a detector connected to the first end of the above-mentioned rod is connected between the generator output and the primary transducer input; the measuring device is connected to the above-mentioned measuring cell and to the electronic control unit making it possible to determine the moisture content by the frequency value on which the minimal input impedance of the above mentioned primary transducer is achieved.