The F-701-20 is an ambient air particulate monitor to detect TSP, PM10 or PM2.5 in ambient air for use in industrial or governmental ambient air monitoring networks.  The F-701-20 is a measuring device for continuous monitoring of the smallest concentration of particles in the ambient air (fine dust). The measuring principle of the F-701-20 ambient dust monitor is based on the absorption of the beta rays (electrons) emitted by a radioactive emitter through particles collected from an ambient air flow. The F-701-20 has shown great level of reliability and can be used in a wide range of applications such as Mobile air pollution monitoring, Indoor dust measurement, Measurement and collection of dust particles for compositional analysis, Dust measurement and collection at inherited waste sites, Dust measurement in supply air and exhaust ducts,…