MQ131 Ozone Semiconductor - type Gas Sensor For Domestic Ozone Concentration Alarms

Sensitive Material:

The sensitive material of the MQ131 gas sensor is WO₃, which has lower conductivity in clean air. When ozone gas is present, the sensor's conductivity decreases as the gas concentration increases.

Features

• It has good sensitivity to ozone in a wide range.
• It has the advantages of long lifespan, low cost, and a simple drive circuit.
• It has fast response and recovery characteristics and high sensitivity.
• It has long - term working stability.

Working Principle:

Users can convert the change of conductivity into an output signal corresponding to the gas concentration through a simple circuit. The sensor is also sensitive to strong oxidizing gases such as Cl₂ and NO₂, and reacts in the opposite direction to organic interference gases compared with ozone.

Application Fields:

It is widely used in domestic ozone concentration alarms, industrial ozone concentration alarms, and portable ozone concentration detectors.

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