The seed treater is a self-propelled unit with the electric electrically-driven mechanisms. Seeds are treated in a special treating auger. The picking-up auger ensures mechanized loading of seeds into the treating unit. The function of the self-propelling driving unit is controlled by a sensor that provides the automatic movement of the treater towards the grain heap. The machine is compact, easy to operate and ensures high maneuverability. They are manufactured in two versions: with a constant level dosing device or with a peristaltic dosing pump NP-02 for working liquid supply. The peristaltic dosing pump makes it possible to work with multi-component working solutions and ensures excellent dosing accuracy and stability of the working solution.