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Ximimark 3Pcs MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module for Arduino

KWD 4

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Special Features

  • High quality dual panel design with power indicator and TTL signal output indication.
  • 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.
  • A hazardous gas detection apparatus for the family, the environment. Suitable for ammonia, aromatic compounds, sulfur, benzene vapor, and other gases harmful gas detection. Gas-sensitive element test concentration range: 10 to 1000ppm.
  • Long service life, stable and reliable. Has fast response and recovery features.

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