- Sensitive infrared sensor provides highly accurate air quality detection with real-time updates every second, delivering fast and stable CO2 readings. - Multi-function detector tracks carbon dioxide levels along with ambient temperature and humidity to help you assess the environment. - Data display on a smart color screen shows parameters at a glance, with color-coded indicators to prompt timely environmental awareness. - Long battery life and wireless operation: built-in 1200 mAh rechargeable battery with Type-C charging; standby time 240–360 minutes; cordless detection for convenient placement. - Use scenario: in small offices or conference rooms, monitor CO2 and temperature/humidity to optimize ventilation and maintain a comfortable, productive space. - Use scenario: in classrooms or laboratories, track air quality during occupancy to adjust ventilation and ensure safe learning or work conditions. - Use scenario: in homes or apartments, monitor daily air quality to maintain healthy indoor conditions and respond quickly to changes.