A hazardous gas detection for ammonia, aromatic compounds, sulfur, benzene vapor, smoke and other gases harmful gas detection, gas-sensitive element test concentration. Air quality sensor is for detecting a wide range of gases, including NH3, NOx, alcohol, benzene, smoke and CO2.
- Consist of LM393 and MQ135 gas sensing probe
- Operating voltage: DC 5V
Features
- Dual signal output (analog output, and TTL level output);
- TTL output valid signal is low
- Analog output with increasing concentration, the higher the concentration, the higher the voltage;