Automatic cleaning system for air sampling pipes. Particularly suitable for environments with a large amount of dust or dirt particles, to guarantee longer detector life and avoid potential false alarms. Equipped with an inlet pipe with a diameter of 25 mm. Constant air pressure of 4 bar. Required connection to a compressed air system. Power supply 15 - 30 Vdc. Maximum consumption 55 mA. IP65 protection rating. Operating temperature 0 +50°C. Weight 2800 g. Dimensions (HxLxD) 235x205x90 mm.