Gas Detection Module Kit – 9 Sensors


Availability: In Stock

This easy to use sensor kit consists of 9 different gas sensors. Each sensor ships pre-assembled with headers installed. Simply power these sensors with 5V, and the AO pin will output an analog voltage proportional to the gas detected.


SKU: KIT-058 Category: Tags: , , ,


These sensors are highly sensitive and provide fast updates once the initial warm up period has completed. Each sensor features an analog output that varies in proportion to the concentration of smoke or gas. The higher the concentration detected, the higher the output voltage on pin A0.

The sensors also provide a digital output capability based on a pre-determined set point. This set point is adjusted using the onboard trimmer potentiometer. Once the A0 signal level reaches this set point, the digital output will be triggered high.

Please note: these are relative output sensors, and the voltage output does not represent a defined concentration. These are best used for detecting a change in concentration.


  • 9 Different Gas Sensors
  • Breakout Boards with all supporting circuitry
  • Analog output proportional to detected gas
  • Digital output at configurable set point

Package Contents

  • 1 x MQ2 - Smoke Sensor
  • 1 x MQ3 - Alcohol Gas Sensor
  • 1 x MQ-4 - Methane Gas Sensor
  • 1 x MQ-5 - H2, LPG, CH4, CO, Alcohol Sensor
  • 1 x MQ-6 - LPG / Propane Gas Sensor
  • 1 x MQ-7 - Carbon Monoxide Gas Sensor
  • 1 x MQ-8 - Hydrogen Gas Sensor
  • 1 x MQ-9 - Carbon Monoxide & Flammable Gas Sensor
  • 1 x MQ-135 - Air Quality Sensor

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  Difficulty Level

Soldering Skill: N/A
Prototyping Skill: Beginner
Programming Skill: Beginner

  Product Certifications

  Product Attributes

Weight: 60 g

  Warranty Policy

This product has a 30 Day Warranty from the date of delivery. The item must not be modified, abused, incorrectly hooked up, or used for purposes outside the original scope of design.

  Return Policy

This product is returnable Within 14 Days of delivery for a store credit. Item must be unopened, unused, and in re-saleable condition.

More Information:
For more information on our Warranty and Return Policies, please consult our   Terms of Service


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