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The MQ-2 Gas Sensor is a low-cost, high-sensitivity module used for detecting combustible gases like LPG, Propane, Methane, Hydrogen, and smoke. It features a sensitive SnO₂ layer that changes conductivity based on gas concentration, offering reliable output with a simple drive circuit. Ideal for both domestic and industrial applications.

Key Features:

• High sensitivity to LPG, Propane, Methane, and Hydrogen
• Responsive to combustible gases and smoke
• Long lifespan with low cost
• Simple analog output circuit
• Standard Bakelite encapsulation with stainless steel mesh

Specifications:

• Sensor Type: Semiconductor (SnO₂ based)
• Detection Gas: LPG, Propane, Methane, Hydrogen, Smoke
• Detection Range: 300–10,000 ppm (combustible gas)
• Loop Voltage (Vc): ≤24V DC
• Heater Voltage (VH): 5.0V ± 0.2V AC/DC
• Heater Resistance: 31Ω ± 3Ω (Room Temp)
• Heater Power Consumption: ≤900mW
• Sensing Resistance (Rs): 2KΩ–20KΩ (in 2000ppm C₃H₈)
• Sensitivity: Rs(in air) / Rs(1000ppm isobutane) ≥ 5
• Operating Conditions: 20°C ± 2°C, 65% ± 5% RH
• Preheat Time: Over 48 hours recommended

Applications:

• Domestic gas leakage detectors
• Industrial combustible gas detectors
• Portable safety equipment
• Smart home and IoT gas detection systems

Included in Package:

• 1 × MQ-2 Gas Sensor Module

Please note: Product information is collected from various sources on the web. Even though we tried our best to provide accurate details, there may be slightly variations. Please take necessary steps before using it.