The DUSTTRAK™ II Aerosol Monitor 8530 is a compact, portable, and data-logging device for monitoring aerosol concentrations in real-time. It features a light-scattering laser photometer and a sheath air system to provide accurate and reliable measurements of aerosol contaminants such as dust, smoke, fumes, and mists. The monitor is ideal for use in industrial and occupational hygiene surveys, indoor air quality investigations, and outdoor environmental monitoring, among other applications. The device is equipped with manual and programmable data logging functions and can be used with the TRAKPRO™ Data Analysis Software for data management and analysis. The DUSTTRAK II Aerosol Monitor is a cost-effective solution for monitoring aerosol concentrations and ensuring compliance with relevant regulations and guidelines.