The particle counter is used in offices, workshops or in laboratories to carry out indicative measurements of the environmental conditions. In addition to the number of particles, the particle counter determines the mass concentration of PM2.5 and PM10 in the measuring range 0 1000 g/m. - Measurable particle sizes: PM2.5 / PM10 - Particle sizes: 0.3 / 0.5 / 1.0 / 2.5 / 5.0 and 10 m - Mass concentration - Particle counter - Temperature - Humidity (RH) - Flash memory for approx. 12 measurement runs