MQ-4 Datasheet (Winsen) - Flammable Gas Sensor

MQ-4, Flammable Gas Sensor

of Sensor Characters CH4 Air Alcohol C3H8 Concentration(ppm) Fig3.Typical Sensitivity Curve The ordinate is resistance ratio of the sensor (Rs/R0), the abscissa is concentration of gases.

Rs means resistance in target gas with different concentration, R0 means resistance of sensor in clean air.

Flammable Gas Sensor （Model：MQ-4） Manual Version: 1.4 Valid from: 2015-03-10 Zhengzhou Winsen Electronics Technology Co., Ltd Statement This manual copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD.

Without the written permission, any part of this manual shall not be copied, translated, stored in database or retrieval system, also can’t spread through electronic, copying, record ways.

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MQ-4 Features

* It has good sensitivity to methane in wide range, and has advantages such as long lifespan, low cost and simple drive circuit &etc. Main Applications It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector. Technical Parameters Stable.1 Model