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Grove - Gas Sensor(MQ3)

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How to choose a gas sensor ?The Grove - Gas Sensor module is useful for gas leakage detecting(in home and industry)

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PRODUCT DETAILS

Tip

We've released the Seeed Gas Sensor Selection Guide, it will help you choose the gas sensor that best suits your needs.

How to choose a gas sensor?

The Grove - Gas Sensor module is useful for gas leakage detecting(in home and industry). It can detect LPG, i-butane, methane, alcohol, Hydrogen, smoke and so on. Measurements can be taken as soon as possible based on its fast response time. Also, the sensitivity can be adjusted by the potentiometer.

There are different gas detectors for sale, like  MQ2, MQ3, MQ5and MQ9. Below is a contrast table of them.

 

Symbol MQ-2 MQ-3 MQ-5 MQ-9
Detect Gas Combustible Gas、Smoke 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

Note

Hot-swapping the grove may lead to IC burnout, please turn off the power of the main board before swapping grove.

 

Features

  • High sensitivity to Combustible gas in a wide range

  • Stable performance, long life, low cost

  • Fast response

  • Wide detection range

  • Simple drive circuit

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.

Technical details

Dimensions 130mm x90mm x21mm
Weight G.W 14g
Battery Exclude

Part List

Grove - Gas Sensor(MQ3) 1

ECCN/HTS

HSCODE 9027900000
USHSCODE 90230000
UPC 841454108344
ROHS 1

LEARN AND DOCUMENTS

Learn

Connect a basic sensor station to Arduino Cloud and visualize real-time data.
This project measures blood alcohol levels from a driver’s breath. The levels would be detected from sensors mounted in front of the driver.
The Grove - Gas Sensor(MQ3) module is useful for gas leakage detection (in home and industry). It is suitable for detecting Alcohol, Benzine, CH4, Hexane, LPG, CO.

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