Sensitive material of MQ131 gas sensor is semiconductor metallic oxide, with high conductivity in clean air. When the ozone gas exists, the sensor’s conductivity gets lower along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
MQ131 ozone gas sensor has high sensitivity to ozone and also has sensitivity to strong oxide gases, such as Cl2, and NO2 etc. It responses oppositely to organic interference gases, compared with O3.
MQ131 gas sensor has high sensitity to Ozone, also sensitive to O3 CL2, NO2, etc. The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity.
The signal light indicates the output
Dual signal output (analog output, and TTL-level output)
TTL output valid signal is low; (low output signal light, can be accessed by the microcontroller IO port)
The analog output increases with the concentration, the higher the voltage the higher the concentration
Ozone gas with high sensitivity (detection concentration range 10PPB-2PPM Ozone)
long life and reliable stability
Fast response characteristics
Application
It is widely used in domestic ozone concentration alarm, industrial ozone concentration alarm and portable ozone concentration detector.
