MICS-5524 Air Quality Gas Sensor Module

The MICS-5524 Gas Sensor Module is a compact, high-sensitivity electronic sensing component designed to detect carbon monoxide (CO), methane, natural gas, and other combustible or reducing gases. Whether you're building a DIY home air quality monitor, an Arduino/Raspberry Pi project, or a professional gas detection system, this module delivers reliable, real-time gas concentration readings in a convenient breakout board form factor.

Key Features

Multi-Gas Detection: Sensitive to carbon monoxide (CO), methane (CH₄), natural gas, propane, and other reducing gases — all in one module.
MICS-5524 Sensor Core: Built around the industry-standard SGX Sensortech MICS-5524 MEMS-based metal oxide semiconductor sensor for consistent, repeatable readings.
Analog & Digital Output: Provides both analog voltage output (for precise concentration readings) and digital output (for threshold-triggered alerts), making it compatible with virtually any microcontroller.
Easy Integration: Standard pin spacing and clearly labeled connectors make wiring straightforward for Arduino, ESP32, Raspberry Pi, and other development platforms.
Compact Form Factor: Small PCB footprint fits neatly into project enclosures, sensor arrays, or embedded systems.
Wide Operating Voltage: Compatible with 3.3V and 5V logic systems — no level shifter required for most microcontrollers.
Fast Warm-Up & Response: Reaches stable operation quickly, ideal for both continuous monitoring and intermittent sampling applications.

Specifications

Sensor Model: MICS-5524
Target Gases: Carbon Monoxide (CO), Methane (CH₄), Natural Gas, Propane, Ethanol, Hydrogen
Output: Analog (A0) + Digital (D0)
Operating Voltage: 3.3V – 5V DC
Interface: Analog/Digital GPIO (compatible with Arduino, ESP, STM32, etc.)
PCB Dimensions: Compact breakout board

Ideal Applications

DIY indoor air quality monitors and smart home gas detection systems
Arduino, ESP8266/ESP32, and Raspberry Pi maker projects
Combustible gas leak detection in kitchens, garages, and utility rooms
Industrial prototyping and embedded system development
Educational electronics and STEM laboratory experiments

What's in the Box

1× MICS-5524 Gas Sensor Breakout Module

Frequently Asked Questions

Q: What gases can the MICS-5524 sensor module detect?

A: The MICS-5524 gas sensor module is sensitive to a range of reducing gases including carbon monoxide (CO), methane (CH₄), natural gas, propane, ethanol, and hydrogen. It is commonly used in DIY air quality and gas detection projects where monitoring combustible or harmful gas concentrations is important.

Q: Is the MICS-5524 module compatible with Arduino and Raspberry Pi?

A: Yes — the MICS-5524 sensor module is designed for easy integration with popular microcontrollers and single-board computers including Arduino, ESP8266, ESP32, Raspberry Pi, and STM32. It supports both 3.3V and 5V operating voltages and provides analog (A0) and digital (D0) output pins for flexible interfacing.

Q: Does the MICS-5524 module require calibration before use?

A: Like most metal oxide semiconductor (MOS) gas sensors, the MICS-5524 benefits from an initial warm-up period (typically a few minutes) to reach stable operating temperature. For highly accurate quantitative measurements, users may perform a baseline calibration in clean air. For general threshold-based detection projects, the module works reliably out of the box with standard reference values.

Q: Can I use this module for indoor gas leak detection at home?

A: The MICS-5524 module is a versatile component used in DIY and prototyping gas detection applications, including indoor air quality monitoring systems. It is ideal for maker and educational projects. For certified safety-critical applications, always refer to professionally certified gas detection equipment that meets local safety standards.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.