EFEKTA-Open_PM_Monitor.Project of particle monitoring sensor (PM1.0, PM2.5, PM10, PM2.5 Index, TVOC) with analog pointer display, Zigbee 3.0. The sensor is a network router. The particle sensor, in addition to PM2.5 data, also measures PM1, PM10 and calculates PM2.5 Index. The project is based on the ASAIR APM10 sensor.