The quality of air is very vital to our health, so you need an air quality detector to improve the quality of your life. This product can detect CO2, temperature and humidity for you, and you will not be disappointed with it. 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. Specifications: Material: ABSColor: black, white (optional) CO2 detection ran-ge: 400-5000PPM CO2 detection sensitivity: 1PPMTemperature measurement ran-ge: -10~70Humidity measurement ran-ge: 10%~99%RHHumidity measurement acuracy: 2%RHCharged mode: D C5V 500mA microUSB interface Batterys: 1200mAhPackage size: about 155*105*65mm/ 6.1 * 4.1 * 2.6 inPackage weight: about 260g/ 9.2 ozPacking List: 1*Air Quality Detector 1*USB Cable 1*User Manual