S600 dust monitor with the principle of laser backscattering and high resolution,it can be applied to the monitoring of low concentration emission and highconcentration emission.The structure adopts single-end installation, no need to center the optical path, and is not afraid of the beam swing caused by mechanical vibration of the flue and uneven refractive index caused by uneven temperature of flue gas.The instrument design process minimizes the complexity of on-site installation. The installation of the instrument and rainproof system only requires a screwdriver for electrical connection, and the installation can be completed within 20 minutes. The installation and maintenance is extremely simple, which minimizes the problemscaused by on-site installation and debugging.Adopt standard 4-20ma industrial standard current output, easy connection;The overall power consumption of the instrument is very small, about 5W;The calibrator is placed in place to avoid confusion and loss.Non - point measurement, with a large sampling area, suitable for the use of various diameter chimneys.