With the development of science and technology and production technology, safety awareness, gas sensors play an increasingly important role in domestic life and industry. Due to the gradual improvement of people's living standards, along with more and more gas and electronic facilities such as natural gas, liquefied gas, water heaters and other widely used, explosions and poisoning incidents also occur, safety hazards prevention is more and more important. 

It is increasingly important to monitor the proper functioning of facilities and the safety of relevant parameters in the environment. The use of gas sensors to monitor changes in the environment can help to prevent disasters from occurring. Gas sensors are playing an increasingly important role in the construction of safe digital communities.

The gas sensor is the heart of the gas detection system and is usually installed in the detection head. Theoretically, a gas sensor is a device that converts information about the composition and concentration of a gas into information that can be used by personnel, instruments, computers, etc. by means of a gas volume integrator. Theoretically, a gas sensor is a device that converts information about the composition and concentration of a gas into information that can be used by personnel, instruments, computers etc.

The probe passes through the gas sensor. The gas sample is analyzed by filtering out impurities and interfering gases, drying or cooling, sample aspiration and then chemically treating the sample to facilitate rapid measurement by the chemical sensor.

As can be seen from the above, as a monitoring system, different types of gas sensors can meet different needs, however, with the progress of science and technology, the development of the times, in industrial production, home safety, environmental monitoring and medical and other areas of the gas sensor accuracy, performance, stability requirements are increasingly high, so the research and development of gas sensors are also increasingly important.