MQ Series Gas Sensor Modules Set – MQ2, MQ3, MQ4, MQ5, MQ6, MQ7, MQ8, MQ9, MQ135 – Smoke, Alcohol, LPG, CO, Hydrogen & Air Quality Detection Kit
MQ Series Gas Sensor Modules Set – MQ2, MQ3, MQ4, MQ5, MQ6, MQ7, MQ8, MQ9, MQ135 – Smoke, Alcohol, LPG, CO, Hydrogen & Air Quality Detection Kit
The MQ Series Gas Sensor Modules Set is a comprehensive collection of high-performance gas sensors designed for detecting a wide range of gases including smoke, alcohol, LPG, carbon monoxide, methane, hydrogen, and more. Ideal for Arduino, Raspberry Pi, and other microcontroller platforms, this kit is perfect for building custom air quality monitors, gas leak detectors, and environmental sensing systems.
Each sensor in the MQ series is built with a sensitive material that reacts to specific gases and provides both analog and digital outputs for flexible integration into DIY electronics, safety systems, smart homes, and industrial monitoring applications.
Included Sensors & Their Primary Gas Detection Capabilities:
MQ2 – Smoke, LPG, methane, hydrogen, propane
MQ3 – Alcohol, ethanol, benzine, smoke
MQ4 – Methane (CH₄), natural gas
MQ5 – LPG, natural gas, town gas
MQ6 – LPG, isobutane, propane
MQ7 – Carbon monoxide (CO)
MQ8 – Hydrogen gas (H₂)
MQ9 – CO and combustible gases
MQ135 – Air quality sensor (detects NH₃, NOx, alcohol, benzene, smoke, CO₂)
Key Features:
Analog & Digital Outputs: Easily interface with microcontrollers for real-time gas detection and threshold-based alerts
High Sensitivity & Fast Response: Each sensor is optimized for fast reaction to targeted gases
Adjustable Sensitivity: Onboard potentiometer for fine-tuning detection thresholds (for digital output)
Wide Voltage Compatibility: Operates on 5V, suitable for most development boards
LED Indicators: Power and digital signal LEDs for visual monitoring
Durable PCB Design: Each sensor is mounted on a high-quality breakout board for easy prototyping
Customize PCB
Customize PCB
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How to Request a PCB Layout/Design:
- Send your complete schematic or diagram via our Facebook page.
- We will assess your diagram and provide a quotation based on the complexity and requirements.
PCB Layout & Design Rules:
- All diagrams must be clear and properly labeled.
- Specify the desired board size, number of layers, and component types if applicable.
- Rush requests may incur additional charges.
- We do not accept hand-drawn or incomplete schematics.
- Files will be delivered in Gerber and/or PDF format as requested.
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