1. The intelligent carbon dioxide detector uses an air semiconductor sensor to monitor the temperature and humidity in air quality. 2. It adopts an electrochemical detection module, which has relatively high precision and stable performance, and can detect the carbon dioxide value. 3. It has certain anti - interference ability, low power consumption and a relatively long service life. 4. This product generally does not need calibration and can start detecting once powered on to detect carbon dioxide. 5. There are hundreds of ventilation holes on the back of the shell, which can accelerate the convection between the air and the machine to achieve detection to a certain extent and also have a heat - dissipation effect. 6. It has a wide range of applications, such as 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 mainly includes the above packaging contents and usually 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 about plus or minus 1 - 3 centimeters.