Features:

• Main chip: LM393,MQ-135 gas sensor
• Operating voltage: DC 5V
• With signal output indicator instructions.
• Dual signal output (analog output, and TTL level output).
• TTL output valid signal is low level, (output low signal light, which can be accessed microcontroller IO port).
• Analog output with increasing concentration, the higher the concentration, the higher the voltage.
• with high sensitivity and good selectivity for Sulfide, benzene Department of steam, smoke and other harmful gases.
• Has a long service life and reliable stability.
• Rapid response and recovery characteristics.
• Size:36mm X24mm X25mm(L * W * H)
• Some Application:
• A hazardous gas detection apparatus for the family, the environment. Suitable for ammonia, aromatic compounds, sulfur, benzene vapor, smoke and other gases harmful gas detection. Gas-sensitive element test concentration range: 10 to 1000ppm