ZE14-O3 electrochemical ozone module is a general-purpose, miniaturized module. The electrochemical principle is used to detect O3 in the air, which has good selectivity and stability. Built-in temperature sensor for temperature compensation; at the same time, it has digital output and analog voltage output, which is convenient to use. ZE14-O3 is a general-purpose gas module designed and manufactured by closely combining mature electrochemical detection technology with sophisticated circuit design.

The gas sensing material used in the MQ131 ozone gas sensor is tin dioxide (SnO2), which has a low conductivity in clean air. When there is ozone gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase of the ozone gas concentration in the air. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit.

The MQ131 ozone gas sensor has high sensitivity to ozone, and also has a certain sensitivity to strong oxidizing gases such as chlorine and nitrogen dioxide, and reacts in the opposite direction of ozone to organic interfering gases.