The MQ-2 sensor is suitable for liquefied gas, butane, propane, methane, alcohol, hydrogen, smoke and detection. ranging from 300 - 1000PPMM.

Specifications:

• Detection range: 300 to 10000 PPMM
• Characteristic gas: 1000 PPMM isobutane
• Sensitivity: R in air/Rin typical gas was 5
• Sensitive body resistance: 1 kilohm to 20 kilohm in 50 PPM toluene
• Response time: acuities 10 s
• Recovery time: 30 s or less
• Heating resistance: 31ohms ± 3 ohms
• Heating current: acuities 180 ma
• The heating voltage: 5.0 V + / - 0.2 V
• Heating power: acuities 900 mw
• Measuring voltage: acuities 24 v
• Working conditions environmental temperature: - 20  ~ + 55 degree
• Humidity: 95% RH or less
• Oxygen environment: 21%
• Storage condition temperature: - 20  ~ + 70 degree
• Humidity: 70% RH or less