Intelligent carbon dioxide tester uses an air semiconductor sensor to monitor air quality, including temperature and humidity. Features a high-quality electrochemical detection module for high accuracy and stable performance, capable of accurately detecting carbon dioxide levels. Offers strong anti-interference capability, low power consumption, and long service life. No calibration required—ready to use upon startup for immediate and accurate CO2 detection. Multiple ventilation holes on the back of the housing enhance air convection for effective detection and provide efficient heat dissipation. Suitable for various applications such as agriculture, greenhouse farming, storage warehouses, and material processing. Specifications: Name: Air Quality Detector Color: White Material: Plastic Package Contents: 1 x Carbon Dioxide Detector 1 x USB Cable 1 x English Manual Note: The package includes only the items listed above. Other items are not included. Due to lighting effects and monitor settings, the actual color of the product may vary slightly from images. Measurement error allowance is +/- 1-3 cm.