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
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.