1. The intelligent carbon dioxide detector uses an air semiconductor sensor to monitor the temperature and humidity in the air quality. 2. It adopts a high - quality electrochemical detection module, which has high precision and stable performance, and can accurately detect the carbon dioxide value. 3. It has strong anti - interference ability, low power consumption and a long service life. 4. This product does not need calibration and can start detecting once it is powered on, accurately detecting carbon dioxide. 5. There are hundreds of ventilation holes on the back of the shell, which not only accelerate the convection between the air and the machine to achieve effective detection, but also have a good heat - dissipation effect. 6. Wide applications: agricultural planting, greenhouse vegetables, production warehouses, material processing, etc. 7. Specifications: - Name: Air quality detector - Color: Black - Material: Plastic 8. Packaging contents: - 1 carbon dioxide detector - 1 USB data cable - 1 English instruction manual 9. It only includes the above packaging contents and does not include other products. 10. Note: Light reflection and different displays may cause the color of the item to vary slightly from the actual product. The allowable measurement error is plus or minus 1 - 3 centimeters.