Reliable dust concentration detector of high stable

The utility model belongs to the technical field of the environmental protection, especially, relate to a reliable dust concentration detector of high stable, including light signal reception portion and singlechip, light signal reception portion is connected with thermostatic control ware and temperature sensor, temperature controller and temperature sensor and the singlechip is connected, the singlechip still is connected with humidity transducer. The utility model discloses carry out thermostatic control at laser dust appearance light signal reception increase temperature sensor of portion and thermostatic control ware, it carries out the humidity correction to increase humidity transducer in dust appearance gas circuit to solved current dust monitoring instrument under outdoor adverse circumstances, it is that long -term continuous operation exists because the instrument that humidity was disturbed, temperature drift aroused is unstable, the insecure technical problem of data.