Applications City pollution CO, NO, NO2, O3, SO2, Particle Matter – Dust Air Quality Index calculation SO2, NO2, Particle Matter – Dust, CO, O3, NH3 Emissions from farms and hatcheries CH4, H2S, NH3 Greenhouse management CO2, CH4, humidity Control of chemical and industrial processes CH4, SO2, CO2 Indoor air quality CO2, CO, Particle Matter – Dust, O3 Forest fires CO, CO2 Sensors Carbon Monoxide – CO Carbon Dioxide – CO2 Molecular Oxygen – O2 Ozone – O3 Nitric Oxide – NO Nitric Dioxide – NO2 Sulfur Dioxide – SO2 Ammonia – NH3 Methane – CH4 – and other combustible gases Hydrogen Sulfide – H2S Particle Matter (PM1 / PM2.5 / PM10) – Dust Sensor Temperature Humidity Pressure