Grove - Multichannel Gas Sensor V2

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Grove - Multichannel Gas Sensor V2

Grove - Multichannel Gas Sensor V2

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Multiple Function Sensor Development Tools Grove - Multichannel Gas Sensor v2


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  • Four fully independent sensor elements on one package.
  • The ability to detect a variety of gases, besides Carbon monoxide CO , Nitrogen dioxide NO2 , Ethyl alcohol C2H5CH , Volatile Organic Compounds VOC and etc.
  • Qualitative detecting, rather than quantitative.
  • Compact size for easy deployment.



If this is not what you want, we've also released a Seeed Gas Sensor Selection Guide, which helps you find the right gas sensor you need.

Worried about not recognizing the gas around your workplace or other surroundings and environment? Here comes the excellent solutions we offer! Grove Multichannel Gas Sensor V2 has 4 measuring units, each of them is sensitive to various kinds of gases, which means you are able to get four sets of data at the same time.

And different sorts of gases can also be judged by these four sets of data. The gas sensor used in this module is based on MEMS technology and has the advantage of being in a small size with considerable measurement stability and is more suitable for qualitative than quantitative measurement.




I2C address
3.3V 5V

Onboard Gas Sensors
GM 102B; GM 302B; GM 502B; GM 702B


Before using it, the sensor needs to be preheated to achieve the internal chemical balance.

The preheat voltage is consistent with its heating voltage VH. And the storage time and corresponding warm up time are recommended as follows:

How Does Storage Time Affect The Recommended Warm Up Time of This Sensor?

Storage timeRecommended warm up time

Less than 1 month
No less than 24 hrs

1 6 months
No less than 48 hrs

Over 6 months
No less than 72 hrs

How Does This Differ From Our Previous Multichannel Gas Sensor?Cautions

  • The module should avoid being placed in the volatile silicon compound steam, or it will cause the sensitivity to be reduced and irrecoverable.
  • The module should avoid being exposed to high concentrations of corrosive gases such as H2S, SOX, Cl2, HCl, etc. , otherwise, it will be irreversibly damaged.
  • The module should not be placed in water or ice.
  • After the module is powered on, the sensor will heat up to a certain degree during the process, which is a normal phenomenon.
  • Users MUST preheat the module before starting to measure gases.

What is Grove? Grove makes it easier to connect, experiment, and simplify the prototyping process.

No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfil a variety of needs.

Not only are these open hardware, but we also have open source software.


For all Grove users especially beginners , we provide you with the guidance of operation.

Please download and read through Sensor Gas and Seeed Gas Sensor Selection Guide before your using the product.


Parts list

  • 1x Multichannel gas sensor board
  • 1x Grove cable
Grove - Multichannel Gas Sensor V2
  • Product - Add-On Boards
  • Series - Grove
  • Type - Gas Sensor
  • Brand - Seeed Studio
  • Manufacturer - Seeed Studio
  • Operating Supply Voltage - 3.3 V
  • Product Type - Multiple Function Sensor Development Tools
  • Standard Pack Qty - 1
  • Subcategory - Development Tools
  • Tool Is For Evaluation Of - GM-102B, GM-302B, GM-502B, GM-702B