Abstract: A cleaning device for spray cleaning of a sensor surface includes a spray-body having a spray-nozzle and a body-housing. A liquid fluid connection to a liquid inlet and a pressurized air fluid connection to a pressurized air inlet are such that suction pressure is induced at the liquid fluid connection upon providing pressurized airflow from the pressurized air inlet to the spray-nozzle. A hydraulic flow path is connected to the liquid fluid connection. A hydraulic valve is adapted for selective control of supplying liquid fluid to the liquid fluid inlet. A pneumatic flow path is connected to the pressurized air fluid connection. A pneumatic valve is in a pressurized air fluid duct adapted for selective control of supplying pressurized air fluid from a pressurizer to the pressurized air fluid inlet. The spray-nozzle sprays the liquid fluid and the pressurized air fluid as a mixture in an aerosol jet.