SQUAIR monitor is a smart indoor air quality monitoring device that can detect particulate matters and gas parameters. It detects PM10, PM2.5, CO, CO2, O3, NO2, SO2, TVOC, HCHO, noise, light, temperature & humidity. The monitor comes with two product variants like SQUAIR Lite & SQUAIR Pro which have a few different sensors inside the monitor. The monitor also gives an alert system ... https://www.pranaair.com/air-quality-monitor/squair-air-monitor/