Features: This portable device can quickly and accurately detect the level of carbon dioxide in the air, providing users with insights into indoor air quality. In addition to measuring carbon dioxide levels, it also features temperature and humidity measurement capabilities, offering a complete set of environmental parameters. Perfect for individuals who prioritize indoor air quality, such as homeowners and office managers. Suitable for use in various settings, including homes, offices, schools, and laboratories, to monitor and improve indoor air quality. Equipped with a clear LCD screen, this device provides intuitive displays of carbon dioxide levels, temperature, and humidity data. It also allows for data recording, enabling users to track air quality trends over time. Specifications: Material: ABS Voltage: 3.7V Battery Capacity: 1000mAh Size: Approx. 2.9x2.9x0.7inch(7.3x7.3x1.8cm) Package Includes: 1x Mini CO2 Detector note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.