Features:1. Carbon dioxide detector: the gas analyzer of the intelligent carbon dioxide value tester uses an air semiconductor TVOC sensor to monitor the temperature and humidity of the air quality.2. It is a high-quality air quality detector. It adopts high-quality electrochemical detection module, with good accuracy, stable performance, strong anti-interference ability, low consumption and long service life. Accurately detect carbon dioxide.3. The product does not need calibration, and can be tested after startup to accurately detect carbon dioxide. The large screen displays the power, CO2 value, temperature and humidity.4. Equipped with a large screen, different font colors display different air quality. The hundreds of ventilation holes in the rear not only accelerate the convection between the air and the machine, thus achieving effective detection, but also provide good heat dissipation effect.Specifications:Upgraded:1. Screen size: 6.5 inches2. Screen material: glass3. Material: ABS4. Color: black, white5. Screen resolution 240 * 2406. Reaction time: