1Accurate Display: The sensor module of CO2 detector has high accuracy , good stability and anti interference, and accurately displays CO2 concentration. Humidity display and three measurement modes. 2Realtime Detection: The carbon dioxide detector can do realtime detection, with a built in high performance chip, and uses monitoring technology to report the number of air changes. 3LCD Monitor: The air quality detector has an easy to read LCD monitor that displays data while color coding. 4Adjust Brightness: Touch the left and right buttons on the power switch to adjust the brightness of the screen according to the position. 5Compact Design and Versatility: The air quality detector has a compact design for tabletop placement and wall mounting, low power consumption, and is widely used in agricultural farming, greenhouse farming, etc.