Description

MQ Gas Sensor Module Series for Arduino and IoT Projects

The MQ Gas Sensor Module series is designed for gas detection applications including smoke monitoring, combustible gas detection, alcohol sensing, LPG detection and carbon monoxide monitoring.

These compact sensor modules are widely used in Arduino projects, ESP32 applications, robotics, smart home systems and DIY electronics projects.

The MQ series provides an easy solution for engineers, makers and students who need reliable gas sensing components for prototyping and educational applications.

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Wide Range of MQ Gas Sensor Options

Different MQ sensors are designed to detect different types of gases. This product page includes the following popular models:

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Key Features of MQ Gas Sensor Module

Multiple Gas Detection Applications

The MQ gas sensor module family covers different detection requirements, from household gas leakage monitoring to industrial prototype systems.

Common applications include:

• Gas leakage alarm systems
• Smoke detection projects
• Air quality monitoring
• Smart home devices
• IoT environmental monitoring
• Arduino robotics projects

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Compatible with Arduino and Microcontrollers

These gas sensor modules are designed for easy integration with popular development boards.

They can work with:

• Arduino UNO
• Arduino Mega
• ESP8266
• ESP32
• Raspberry Pi

The module normally provides:

• Analog output (AO)
• Digital output (DO)

allowing users to measure gas concentration changes or trigger alarm functions.

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Technical Specifications

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MQ Sensor Module Applications

1. Smart Home Gas Monitoring

MQ gas sensors can be integrated into smart home systems to detect potential gas leakage and improve safety monitoring.

2. Arduino Educational Projects

The simple interface makes these modules popular among students, makers and electronics enthusiasts.

New to Arduino? Check this Video and start building your first electronics project.

3. IoT Environmental Monitoring

Combined with ESP32 or Raspberry Pi, MQ sensors can be used for connected monitoring systems.

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Why Choose Fondyes MQ Gas Sensor Module?

✔ Multiple MQ models available in one product series

✔ Suitable for Arduino and IoT applications

✔ Easy analog and digital signal output

✔ Compact PCB design

✔ Ideal for prototyping and education

✔ Reliable component sourcing from Fondyes

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Package Includes

1 × MQ Gas Sensor Module
(Select MQ-2 / MQ-3 / MQ-4 / MQ-5 / MQ-6 / MQ-7 / MQ-8 / MQ-9 / MQ-135)

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FAQ

Q1: What gases can MQ sensors detect?

Different MQ models detect different gases, including smoke, LPG, methane, alcohol, hydrogen and carbon monoxide.

Q2: Are MQ gas sensor modules compatible with Arduino?

Yes. MQ sensor modules are commonly used with Arduino UNO, Mega, ESP32 and other microcontrollers.

Q3: What is the difference between MQ-2 and MQ-135?

MQ-2 is mainly used for combustible gas and smoke detection, while MQ-135 is commonly used for air quality and environmental gas monitoring.