MiCS5524 CO, Alcohol and VOC Gas Sensor

Features:

• MiCS5524 CO, Alcohol and VOC Gas Sensor
• Robust MEMS (Micro Electro Mechanical System) Sensor
  
• Operating Voltage: 4.9V to 5.1V
• Analog Output via Ao pin (voltage increases as amount of any of the detected gases increases)
  
• Suitable Uses:
• Carbon Monoxide Detection
  
• Natural Gas Leak Detection
• Monitoring Air Quality
  
• Early Fire Detection
• Breathalyzer (alcohol detection)
• Only 4 Pins:
• 5V: Power
  
• GND: Ground
  
• Ao: Analog Output (0V to 5V: as the amount of detected gases increases, voltage increases)
  
• En: Output Enable (to turn off the sensor for power consumption, send a HIGH 5V signal)
  
• Detection ranges:
• Carbon Monoxide CO: approx 1 to 1000 ppm
• Ammonia: approx 1 to 500 ppm
• Ethanol: approx 10 to 500 ppm
• H2: approx 1 - 1000 ppm
• Methane: approx 1000++ ppm
  
• Propane: approx 1000++ ppm
  
• Iso-Butane: approx 1000++ ppm
• For hobby use
• Current Draw: 25 to 35mA
• Works with Arduino, Teensy & Photon boards. Can be used with Raspberry Pi if you also use an Analog to Digital Converter.