DustMonit is an optical dust monitoring system able to meaure the size distribution of particles and output the mass concentration of various size fractions in real time. PM10, P2.5 and PM1 are simultaneously measured. The system is low power and can be operated from battery power, solar panels or wind turbines. The enclosure is IP 65 rated and the inlet ha a smart heater to reduce the effects of humidity on the measurement. There is a fixed , portable and personal version suited to your specific application.