Carbon dioxide (CO2) is a colorless and odorless gas at room temperature. It maintains a certain concentration of CO2 in industrial, agricultural, animal husbandry and residential environments and public places. Carbon dioxide gas detectors and carbon dioxide detectors detect the concentration of CO2 on site.

The automobile industry has gradually become one of my country's pillar industries. With the development of technology and the gradual strengthening of people's health and environmental protection concepts, the automobile industry has gradually developed in the direction of safety, environmental protection, health and comfort. Among them, the detection of safe, healthy and environmentally friendly carbon monoxide, carbon dioxide, formaldehyde, alcohol, methane and other gases has been widely used in the automotive industry. More and more cars are beginning to use indoor air quality testing, especially CO2 testing, as a selling point.