A compact MEMS gas sensor breakout based on the MiCS-5524, capable of detecting concentrations of multiple gases including carbon monoxide (CO), methane (CH4), ethanol (C2H5OH), propane (C3H8), butane (C4H10), hydrogen (H2), hydrogen sulfide (H2S), and ammonia (NH3).

The breakout provides analog voltage output and includes a power enable/disable pin for low-power applications. Compatible with 3.3–5.5 V controllers, with sample code that integrates concentration conversion formulas for each supported gas.

Key Features

• Multi-Gas Detection – CO, CH4, C2H5OH, C3H8, C4H10, H2, H2S, and NH3
• MEMS Technology – Compact, reliable sensing element
• Low Power Mode – Enable/disable pin for power management
• Analog Output – Simple integration with any microcontroller ADC
• 3.3–5.5 V Compatible – Works with a wide range of controllers
• Built-In Formulas – Sample code includes gas concentration calculations

Specifications

• Sensor: MiCS-5524
• Operating Voltage: 4.9–5.1 V DC
• Power Dissipation: 0.45 W
• Output: Analog voltage
• Measuring Ranges:
  • CO: 1–1000 ppm
  • C2H5OH: 10–500 ppm
  • H2: 1–1000 ppm
  • NH3: 1–500 ppm
  • CH4: >1000 ppm
• Operating Temperature: −30 °C to 85 °C
• Operating Humidity: 5–95% RH (no condensation)
• Lifespan: >2 years (in air)
• Board Size: 12 × 16 mm
• Mounting Holes: 2 mm inner / 4 mm outer diameter

Ideal For

• Gas leak detection systems
• Air quality monitoring
• Gas safety equipment
• Environmental sensing projects

Package Contents

• 1× Fermion MEMS Gas Sensor – MiCS-5524 Breakout
• 1× 3-Pin Black Header

Resources

• Product Wiki
• MiCS-5524 Datasheet (PDF)
• Schematic (PDF)
• Dimensions & Component Layout (PDF)