MQ-5 Keyestudio gas sensor for arduino

It has high sensitivity to liquefied gas, natural gas and city gas, almost no response to ethanol or smoke, which makes it excellent in anti-alcohol and anti- smoke interference

Specification:

• Heating Voltage (VH): AC or DC 5±0.5V
• Operating voltage: 5V
• Load Resistance (RL): 2KΩ
• Resistance in Cleaning Air (Ra): ≤4000KΩ
• Sensitivity (S=Ra/Rdg): ≥4(in 1000ppmC4H10)
• Response Time (tres): ≤ 10S
• Recovery Time (TREC): ≤ 30S
• Detection Range: 50-10000ppm