Grove - Gas Sensor (MQ9) [Discontinued]

The Grove - Gas Sensor module is useful for gas leakage detecting (in home and industry). It can detect LPG, i-butane, methane, alcohol, Hydrogen, some 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.

Each Grove - Gas Sensor Kit consists of one gas sensor base and four detectors, including MQ2, MQ3, MQ5 and MQ9. Below is a contrast table of them. You can switch the detector on the base according to specific target gases.

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

Features

* High sensitivity to Combustible gas in wide range

* Stable performance, long life, low cost

* Fast response

* Wide detection range

* Simple drive circuit

* Product number: Seeed 101020045

Resources

* Manual

* Product Wiki

* Preface - Getting Started

* Introduction to Grove

Notes

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