Gas Analog CH4 Gas Sensor MQ4 For Arduino

The MQ sensors are one of the most commonly used gas sensors. One of those is the MQ4, which is sensitive to CH4 (Methane), Natural Gas, and LNG (Liquefied Natural Gas). Once connected with an Arduino board, it needs a little time to heat up. Through its potentiometer, the sensitivity is adjustable.

SPECIFICATION

• Power supply: 5V
  
• Interface type: Analog
• High sensitivity to CH4, Natural gas
  
• Small sensitivity to alcohol, smoke
  
• Fast response
  
• Stable and long life
  
• Simple drive circuit
  
• Size: 40x20mm