Datasheet Winsen MQ-2 — Ficha de datos

Flammable Gas Sensor
（Model：MQ-2） Manual
Version: 1.6
Valid from: 2021-07-01 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.
Thanks for purchasing our product. In order to let customers use it better and reduce the faults
caused by misuse, please read the manual carefully and operate it correctly in accordance with the
instructions. If users disobey the terms or remove, disassemble, change the components inside of
the sensor, we shall not be responsible for the loss.
The specific such as color, appearance, sizes &etc, please in kind prevail.
We are devoting ourselves to products development and technical innovation, so we reserve the
right to improve the products without notice. Please confirm it is the valid version before using this
manual. At the same time, users’ comments on optimized using way are welcome.
Please keep the manual properly, in order to get help if you have questions during the usage in the
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. …