Automatic checkweigher controls dosing/metering accuracy of both medium filling and gas filling devices. Programmable weighing range for each can enables rejecting any aerosol which is not compliant with the set value. Such controls improve product quality in a substantial manner as it helps eliminate any errors of the metering devices. Stainless steel design with built-in servo mechanism drives with smooth operating adjustment, a key factor for weighing aerosols. Cans are guided in easy-exchange centering sets suitable for each diameter. Under the tabletop, a tensometric beam is located with hydraulic braking system compatible with the easy-to-read LCD display and touch-screen panel. Per special order, the checkweigher software may be expanded by a module connectivity to a storage programme.