Sulphur dioxide (SO2) gas monitoring sensors for Atmospheric environmental monitoring

Sulphur dioxide is one of the main substances polluting the air and SO2 is recognised as an important corrosive gas in the atmosphere, accelerating the corrosion process of most metals, detection of sulphur dioxide in the air is a regular part of the air inspection process. Sulphur dioxide sensors have shown great superiority in this respect.

For air quality monitoring, we have launched the intelligent "four gases and two dusts" (SO2, NO2, CO, O3, PM2.5, PM10) sensor, which is our new intelligent sensor specifically for gas detection. The gas in the detected area of the instrument flows freely into the gas sensor.

The sensor mainly solves the problems of various types of gas detection, incompatible sensors, complicated calibration, and restrictions on the replacement of core devices; it is easy to operate, accurate and reliable.

Product features 

●Adopting foreign original imported four-electrode gas sensor, with stable performance and high resolution.

●Monitoring NO2, CO, SO2, O3 gases, optional PM2.5, PM10 dust parameters.

● Modular product design, convenient for later maintenance.

This product is suitable for use in enterprise park monitoring, municipal environmental monitoring, mobile environmental monitoring, traffic pollution environmental monitoring, residential area or park environmental monitoring, livestock breeding and other fields.

The four gas and two dust sensors innovatively combine the six pollutant parameters PM2.5, PM10, CO, SO2, NO2 and O3 through a highly integrated structure to achieve 24-hour continuous online monitoring of each pollutant parameter data by gas and transmit the monitored data to people at one time.

PM2.5, PM10 Technical Parameters：

Dust monitoring uses the laser scattering method to measure particle concentrations. When the particles pass through the light sensitive area formed by the focused laser, the light scattered by the particles is collected by a micro photoelectric detector on the detection window. The detector converts the received light intensity signal into a voltage signal, the density of the signal corresponds to the unit concentration value of the particles, the dust concentration value is converted into a coefficient and output in real time through the data interface.

Gas sensor technical parameters：

The gas sensor adopts the principle of electrochemistry to monitor atmospheric concentration, using foreign original imported four-electrode gas sensor, the four-electrode sensor has an extra auxiliary electrode for compensating the zero current, so that it has better response time and anti-interference characteristics.