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Detect Gas Changes with a Practical Air Sensor
The Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout is a gas sensor designed for air-quality projects, leak alerts, and ventilation monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Product Dimensions: 20.0mm x 12.7mm x 3.1mm / 0.8" x 0.5" x 0.1"; Product Weight: 0.9g / 0.0oz; Category: gas sensors.
Important: Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.
Why you’ll love it
- Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
- Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
- Project-ready sensing: air-quality projects, leak alerts, and ventilation monitoring
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout | gas sensor | Current item |
| Adafruit SGP40 Air Quality Sensor Breakout - VOC Index - STEMMA QT / Qwiic | gas sensor with I2C | STEMMA QT connector, Qwiic connector |
| Gas Sensor MQ5 Analog LPG For Arduino | gas sensor with analog output | analog output, digital output |
| Gas Sensor MQ135 | gas sensor with UART | analog output, digital output |
What you can build
This sensor is a good fit for gas leak alarms, indoor air monitors, safety demos, ventilation control, and science projects.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include fresh-air test setup, an enclosure with vents, and a display for local readout, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout |
|---|---|
| Product Dimensions | 20.0mm x 12.7mm x 3.1mm / 0.8" x 0.5" x 0.1" |
| Product Weight | 0.9g / 0.0oz |
| Category | gas sensors |
Wiring & usage notes
Check the pin labels on the Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.
What’s in the box
1 × Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout
Frequently Asked Questions
What does the Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout measure?
It is designed to measure gas concentration changes in air.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
Does it need calibration?
Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
Compatibility & downloads
// downloads
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