CO2 detection range: 400~5000PPM Charging: USB Type-C interface Applicable temperature: -1~+70 Color: black Detection principle: semiconductor sensor Features: 1. Small size, light and portable, easy to take out and carry. 2. Uses TVOC sensors, high accuracy, real-time detection, automatic data update, one device for multiple uses. 3. Large LCD screen displays power, CO2 value, TVOC value, HCHO value, temperature, and humidity clearly at a glance. 4. Stable detection performance, strong anti-interference ability, low power consumption, and long service life. 5. Includes air quality zoning function; four different colors correspond to different air quality levels for accurate and intuitive monitoring. 6. Hundreds of ventilation holes on the shell accelerate air convection for effective detection and provide good heat dissipation. 7. Widely used in agricultural planting, greenhouse vegetables, production warehouses, material processing, home decoration, business offices, and other environments. Package List: 1 * Air Detector 1 * USB Cable 1 * User Manual (English) Note: 1. Please allow slight variations due to manual measurement. 2. Due to differences between monitors, the image may not reflect the actual color of the item.