The MQ-6 LPG - Isobutane - Propane Gas Sensor is a semiconductor gas sensor that detects the presence of LPG, Isobutane, and Propane gas at concentrations from 100 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.The MQ-6 LPG - Isobutane - Propane Gas Sensor detects the concentration of gas in the air and outputs its reading as an analog voltage.  The sensor can operate at temperatures from -10 to 50°C and consumes less than 150 mA at 5 V.

Features of MQ6 LPG GAS SENSOR:-

• High Sensitivity to LPG, iso-butane, propane
  
• Small sensitivity to alcohol, smoke
  
• Good sensitivity to Combustible gas in wide range
  
• High sensitivity to Propane, Butane, LPG and also response to Natural gas
  
• Long life and low cost
  
• Simple drive circuit
  

Specification of MQ6 LPG GAS Sensor:-

• Detection Range: 100 - 10,000 ppm iso-butane propane
  
• Fast Response Time: <10s
  
• Simple drive circuit
  
• Heater Voltage: 5.0V
  
• Dimensions: 18mm Diameter, 17mm High excluding pins, Pins - 6mm High 
  

Applications of MQ6 LPG Gas Sensor:- 

• Gas leak detection system
  
• Fire/Safety detection system
  
• Domestic gas leakage detector
  
• Industrial Combustible gas detector
  
• Portable gas detector
  
• Gas leak alarm
  
• Gas detector