tMonitor is the Internet of things (IoT) device that delivers simultaneous real-time, accurate, precise measurements of Particles (PM 1, PM 2.5, and PM 10), Gasses (VOCs, SO2, CO, O3, CO2, and NH3), and Environmental Conditions (Temperature, Humidity, and Light). With a focus on minimal maintenance and low cost of ownership, air quality monitoring instrumentation is reliable, easy to use in the field for both long-term and short-term deployments, and level of accuracy of an industry standard reference instrument. Source : Youtube