Gas sensor MQ-131 (Ozone, Chlorine, CO2)

Gas sensor MQ-131 (Ozone, Chlorine, CO2)

Product information:

The MQ-131 ozone sensor is a compact and powerful sensor for detecting ozone gas (O₃) in the air. The sensor uses tin oxide (SnO₂) as a sensitive material, which responds to the presence of ozone by increasing its conductivity. This change can be easily converted into a readable signal corresponding to the ozone concentration.

The sensor has a high sensitivity to ozone, and also reacts to strong oxidizing gases such as chlorine and nitrogen dioxide. Organic gases cause an opposite reaction, which makes the MQ131 very suitable for precision applications in various environments.

Thanks to its compact size and operation on 5V, this sensor is easy to integrate into various projects.

With an analog output and a digital output via an LM393 comparator.
The analog output of the MQ-131 can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.

Dimensions: 32 × 22 × 30 mm
Working voltage: 5V DC

Attention! Our MQ gas sensors are ideal for hobby projects and experiments, but they may not be used to ensure life safety. Use them responsibly and always ensure the correct safety measures in critical situations. Safety first!