Sensitive material of MQ131 gas sensor is SnO2 which with lower conductivity in clean air. When Ozone gas appears, the sensor’s conductivity is higher along with the gas concentration rising. Please use simple electric circuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ131 gas sensor has high sensitivity to Ozone, also sensitive to CL2, NO2, etc.
* Good sensitivity to Ozone in wide range
* High sensitivity to Ozone
* Long life and low cost
* Simple drive circuit
* Domestic Ozone concentration overload Detector
* Industrial Ozone concentration overloads Detector
* Portable Ozone concentration overloads Detector
Bakelite (Black Bakelite)
5.0V±0.2V AC or DC
50KΩ-500KΩ(in 100ppb O3)
Rs(in air)/Rs(in 50ppb O3)≥3
Standard test circuit
Over 48 hours