A compact sprayer device for the spraying of a liquid in the form of droplets for the treatment of a target, such as, for example, a vegetal hedge, and intended to equip a sprayer and control system including a plurality of sprayer devices and a control console that makes possible the remote individual control of each sprayer device independently of the other devices, said sprayer device comprising a sprayer unit comprising a nozzle with an air inlet opening at one of its ends and an air outlet opening at its other end, said nozzle surrounding, along its axis, an internal space that contains at least one sprayer element (30, 31), a piping (8, 9) for the supply with liquid to the latter, a fan that can axially generate in the internal space of the nozzle a stream of carrier air around said sprayer element to carry toward the target the droplets that are created and propelled by the latter in said stream of air, preferably in the internal space, and a fan drive system (4, 4a) for driving said fan, characterized in that it furthermore includes: - a liquid supply system (7, 11) that is functionally connected to the piping (8, 9) and comprising an electric pump, preferably a volumetric pump, more preferably a peristaltic pump, if appropriate associated with a flow rate sensor, making it possible to push back, at a controlled variable flow rate, the liquid originating from a reservoir, in said piping (8, 9), and a connecting interface making it possible for said system to receive the liquid originating from the reservoir, - a support that makes it possible to fixedly hold the electric pump close to the sprayer unit, - an electronic control and/or monitoring unit, for example implanted on a printed circuit board, provided for the purpose of controlling and/or monitoring the functioning of the fan drive system (4, 4a) and the liquid supply system (7, 11) by being functionally connected to said drive system and liquid supply system, - an individual communication interface making it possible to functionally connect the device, directly or indirectly, to the control console, and an energy supply interface that can be functionally connected to an electrical energy source to make possible the energy supply of said device. - a liquid supply system (7, 11) that is functionally connected to the piping (8, 9) and comprising an electric pump, preferably a volumetric pump, more preferably a peristaltic pump, if appropriate associated with a flow rate sensor, making it possible to push back, at a controlled variable flow rate, the liquid originating from a reservoir, in said piping (8, 9), and a connecting interface making it possible for said system to receive the liquid originating from the reservoir, - a support that makes it possible to fixedly hold the electric pump close to the sprayer unit, - an electronic control and/or monitoring unit, for example implanted on a printed circuit board, provided for the purpose of controlling and/or monitoring the functioning of the fan drive system (4, 4a) and the liquid supply system (7, 11) by being functionally connected to said drive system and liquid supply system, - an individual communication interface making it possible to functionally connect the device, directly or indirectly, to the control console, and an energy supply interface that can be functionally connected to an electrical energy source to make possible the energy supply of said device.