MiCS-5524 Gas Sensor Module

Product Description

The MiCS-5524 Gas Sensor Module is a compact MEMS-based gas sensing module designed to detect the presence of multiple gases, including carbon monoxide (CO), hydrogen (H₂), methane, alcohol vapours, ammonia, propane, and iso-butane. It provides an analog output that changes according to the detected gas concentration, making it suitable for air-quality monitoring, gas-detection experiments, educational projects, and research applications.

The sensor operates from a 5V DC supply and includes an integrated heater element for stable sensing operation. Its compact design allows easy integration with Arduino, ESP32, Raspberry Pi, and other microcontrollers.

Multi-Gas Detection

The MiCS-5524 can respond to several gases. Approximate sensitivity ranges provided for this module include:

• Carbon Monoxide (CO): ~1–1000 ppm
• Ammonia (NH₃): ~1–500 ppm
• Ethanol: ~10–500 ppm
• Hydrogen (H₂): ~1–1000 ppm
• Methane / Propane / Iso-Butane: ~1000+ ppm

Actual readings depend on calibration, environmental conditions, and the specific gas being detected.

Analog Output

The module provides an analog voltage output that varies with gas concentration. This output can be connected to an ADC input on a microcontroller for monitoring changes in gas levels.

Key Features

• MEMS-based gas sensor
• Multi-gas detection capability
• Analog voltage output
• 5V DC operation
• Integrated heater element
• Approx. 25–35mA heater consumption
• EN pin for heater power control
• Compact design
• Easy Arduino and microcontroller integration
• Suitable for educational and experimental applications

Technical Specifications

Working Principle

The MiCS-5524 uses a heated sensing element whose electrical characteristics change when exposed to certain gases. The resulting change is converted into an analog electrical signal that can be monitored by a microcontroller.

A calibration process is recommended when more consistent or quantitative measurements are required.

Typical Applications

Air Quality Monitoring

Suitable for experimental systems that monitor changes in indoor air composition.

Gas Detection Experiments

Can be used for educational demonstrations and gas-response experiments.

Research Projects

Useful for laboratory and environmental research involving multi-gas sensing.

Breath Analysis

Can be used for non-medical experimental breath-analysis projects.

Applications

• Indoor air-quality monitoring
• Gas-leak detection experiments
• Environmental research
• Educational electronics
• Laboratory experiments
• Breath-analysis prototypes
• Arduino gas sensing
• ESP32 gas monitoring
• Raspberry Pi sensing projects

Package Includes

• 1 × MiCS-5524 Gas Sensor Module

Important Note

Calibration

Calibration is recommended for applications requiring meaningful gas-concentration measurements.

Warm-Up

Allow sufficient warm-up time before taking readings to allow the sensor heater and sensing element to stabilize.

Gas Identification

The sensor can respond to multiple gases and cannot identify which specific gas is present by itself.

Safety

This module is not suitable for safety-critical, medical, fire, or life-protection applications. It should not be used as the sole device for hazardous-gas detection.

Product Disclaimer

Product information may vary between manufacturers, suppliers, and production batches. Product images are for representation only and may differ slightly from the actual product in appearance, component placement, or other details.