Features: 2.8LCD screen display, 240*320 pixels, easy to read. Air quality monitorcan detect temperature and humidity, CO2, you can see the data you care for. With intelligent alarm system, gas-recognition algorithm, multiple anti-interference, air convection technology and greenhouse compensation calibration. 3 seconds to start the device and it only takes 1-2 minutes to make the value stable. This air quality meter is compact and very easy to carry. Widely used in agricultural planting, greenhouse vegetables, production warehouse, ra-w material processing and so on.