Description
The MQ-2 Gas Sensor Module is ideal for detecting a wide range of combustible gases such as LPG, butane, propane, methane, hydrogen, and smoke. It features both analog and digital (TTL) outputs, making it easy to integrate into any microcontroller-based system like Arduino or Raspberry Pi.
This module uses the reliable ZYMQ-2 sensor and LM393 comparator, delivering high sensitivity and fast response. It’s suitable for home safety devices, gas leak detection systems, and fire safety alarms.
Features:
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Dimensions: 32mm × 22mm × 27mm
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Main Components: ZYMQ-2 gas sensor, LM393 comparator
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Operating Voltage: DC 5V
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Signal Output:
– Digital (TTL): LOW when gas is detected
– Analog (AO): 0–5V, voltage increases with gas concentration -
Gas Detection Range: Smoke, LPG, butane, methane, propane, hydrogen, etc.
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Indicator LED: Shows signal output status
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High sensitivity to combustible gases and smoke
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Fast response and recovery time
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Stable performance and long life





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