This air detector can help you check the air condition, which is a great helper for household detection, greenhouse planting, warehouse CO2 detection, etc. Features: Compact size and light weight, portable and convenient to use and carry. Equipped with quality temperature sensor and humidity sensor for fast and accurate detections. The 2.8-inch LCD screen with backlight can clearly display the current CO2, temperature and humidity values. The colored circle will change according to the current CO2 value. Easy to use, no need to calibrate after startup, it can work and detect automatically. Support 240-360 minutes standby time. Widely applied to household use, educational institutions, agricultural cultivation, greenhouse planting, warehouse operation, material processing, etc. Specifications: Color: White/Black (Optional) Charging: Type-C USB interface CO2 Detection Range: 400~5000PPMC02 Detection Sensitivity: 1PPMApplicable Temperature: -1~+70 Package Size: 140*125*42mm/5.5*4.9*1.7in Package Weight: 165g/5.8oz Packing List: 1 * Detector 1 * USB cable 1 * User manual (English)