Accurate air quality monitoring with a CO2 meter that measures carbon dioxide levels, temperature, and humidity simultaneously. Compact device with a colorful backlit display that visually indicates CO2 concentration changes. Builtin 1200 mAh battery, rechargeable via USB for convenient, cord use. Ideal for families who want to maintain indoor air in homes or offices. Suitable for kitchens, living rooms, bedrooms, or on the go, helping you stay aware of your environment's air quality. Use scenarios At home during meals or gatherings: monitor CO2, temperature, and humidity to decide when to ventilate and maintain comfort. In an office or shared space: keep an eye on air quality to support a productive and healthy work environment. While traveling or in small rooms: portable monitoring for bedrooms or temporary workspaces to maintain conditions and sleep quality.