Abstract: An apparatus for counting printed products arriving at a conveyor path or track in an imbricated product stream, comprising a feeler bearing under the action of a contact force upon the product stream and secured against entrainment in the conveying direction of the product stream; this feeler cooperating with an electrical signal transmitter. The feeler comprises an overhang arm of a sound pick-up like transducer cell mounted in a support. The support possesses a support element which serves to bear upon the imbricated product stream. The free end of the overhang arm is structured such that it scans or feels the surface of the imbricated product stream at the region of bearing contact of the support element.The method of operating such apparatus for counting folded printed products is manifested by the features that the overhang arm of the transducer cell is directed to that side of the imbricated product stream at which there is accessible the edges of the printed products located opposite the fold.