Easy to use: CO2 measurement. The sensor module is highly accurate, stable, and resistant to interference. Carbon dioxide concentration can be accurately displayed. Humidity display and three measurement modes. Real-time detection: The CO2 sensor has a built-in high-performance chip and uses monitoring technology to report ventilation times. It captures pollution data more accurately and is low. The current generated during the electrochemical reaction is not limited by location or time, allowing accurate calculation of CO2 evaluation, thus promoting daily infection prevention and a pleasant environment. Easy-to-read LCD screen. The CO2 concentrator has a large LCD screen for good visibility. It displays CO2 concentration, temperature, and humidity in capital letters. This information is also color-coded at a glance. The screen brightness can be adjusted by pressing the left and right buttons of the power switch and adjusting the brightness according to the position, making it a smart