Flammable Gas Sensor
（Model：MQ-2） Manual
Version: 1.6
Valid from: 2021-07-01 Zhengzhou Winsen Electronics Technology Co., Ltd Statement
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caused by misuse, please read the manual carefully and operate it correctly in accordance with the
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the sensor, we shall not be responsible for the loss.
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future. Zhengzhou Winsen Electronics Technology CO., LTD. Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com MQ-2 Semiconductor Sensor for Flammable Gas
Profile
Sensitive material of MQ-2 gas sensor is SnO2, which with lower
conductivity in clean air. When the target flammable gas exist, the
sensor’s conductivity gets higher along with the gas concentration rising.
Users can convert the change of conductivity to correspond output signal
of gas concentration through a simple circuit. …
