Air quality is vital to our health, so you need an air quality monitor to improve your quality of life. You won't be disappointed with this product that detects carbon dioxide, temperature and humidity for you. feature: 2.8LCD screen display, 240*320 pixels, easy to read. Air quality monitors can detect temperature and humidity, CO2, and you can see the data you care about. With intelligent alarm system, gas identification algorithm, multiple anti-jamming, air convection technology and greenhouse compensation calibration. Start the device in 3 seconds, and it only takes 1-2 minutes to stabilize the value. This air quality meter is compact and easy to carry. Widely used in agricultural planting, greenhouse vegetables, production warehouses, raw material processing, etc. Specification: Material: ABS Color: black, white (optional) CO2 detection range: 400-5000PPM CO2 detection sensitivity: 1PPM Temperature measurement range: -10~70 Humidity measurement range: 10%~99% RH humidity measurement accuracy: 2% RH charging mode: D C5V 500mA micro USB interface battery: 1200mAh Packing size: about 155*105*65mm/ 6.1 * 4.1 * 2.6 in Package Weight: Approx. 260g/9.2oz Packing List: 1*Air Quality Detector 1*USB Data Cable 1*User Manual