Description
The main chip: MQ131 gas sensing probe
Operating voltage: DC 5V
- With signal output indicator;
- Dual signal output (analog output and TTL level output);
- TTL output valid signal is low; (output low signal light, you can access microcontroller IO port)
- The analog output increases with the increase of the concentration, the higher the concentration, the higher the voltage;
- Has a very high sensitivity to ozone gas (detection concentration range 10PPB-2PPM)
- Has a long service life and reliable stability;
- Rapid response recovery characteristics.
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