This is the Grove – Gas Sensor range from SeeedStudio. You have the option of MQ2, MQ3, MQ5 or MQ9 sensors in this range – a comparison table is shown below. These sensors detect gas leakage and they cover the detection of LPG, i-butane, methane, alcohol, hydrogen, smoke and more. Across all of these sensors, measurements are taken extremely quickly due to the rapid response time of these devices. The sensitivity of these sensors can be adjusted by the potentiometer.
Sensor Contrast Table
Symbol
MQ-2
MQ-3
MQ-5
MQ-9
Gas Detected
Combustible GasSmoke
Alcohol Vapor
LPG, Natural Gas, Town Gas
Carbon Monoxide, Coal Gas, Liquefied Gas
Detect Concentration
300-10000ppm
0.04-4mg/L Alcohol
300-10000ppm
10-1000ppmCO;100-10000PPm Gas
Features
High sensitivity to a wide range of combustible gases
Stable performance, long life and low cost
Fast response
Wide detection range
Simple drive circuit
For all Grove users (especially beginners), we provide you with PDF documents for guidance. Please download and read through Preface – Getting Started and Introduction to Grove before you begin using these products.
Resources
Please visit the wiki page for more info about these products. It would be appreciated if you can help us improve the documents by adding more demo code or tutorials. For technical support, please post your questions to the forum .
More information about these gas sensors, please refer to this manual .
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