> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Fermion: MEMS Gas Sensor - MiCS-5524 (Breakout)

**Type:** Product page · **SKU:** SEN0440 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/fermion-mems-gas-sensor-mics-5524-breakout.html ([markdown](https://core-electronics.com.au/fermion-mems-gas-sensor-mics-5524-breakout.html.md))

This is a MEMS gas concentration sensor from DFRobot, supports the detection of various gas concentrations like CO, C2H5OH (Alcohol), NH3...

## Pricing

- **Price:** $16.60 (inc GST) — $15.09 AUD, exc GST
- **Quantity discounts:** 6+ $14.34 (exc GST) · 12+ $13.74 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 300 more in 8–12 days.

## How to buy

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- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This is a hydrogen and nitrogen oxide gas concentration sensor launched by DFRobot.

The sensor uses MEMS technology to **support gas concentration detection of CO, CH4, C2H5OH, C3H8, C4H10, H2, H2S and NH3.** The matching sample code integrates the concentration conversion formula of various gas to facilitate the testing and use of sensors.

The product supports 5V power supply, analog voltage output, and has power supply enable/disable pins for low power consumption.

![](https://core-electronics.com.au/media/wysiwyg/product_images/Connection-Diagram-SEN0440.jpg)

**Connection Diagram**

### Features

- Support a variety of harmful gas detection
- Integrate the calculation formulas of various gas concentration
- Low power consumption
- I2C digital output
- Compatible with the 3.3~5.5V master controller

### Applications

- Gas leak detection
- Gas safety equipment
- Air environment detection

### Specification

- Detection of Physical Quantities: Gas concentration or gas leakage of CO, CH4, 2H5OH, C3H8, C4H10, H2, H2S, NH3
- Operating voltage: 4.9~5.1V DC
- Power dissipation: 0.45W
- Output signal: Analog quantity
- Measuring range: 
     1 – 1000ppm (Carbon monoxide CO) 
     10 – 500ppm (Ethanol C2H5OH) 
     1 – 1000ppm (Hydrogen H2) 
     1 – 500ppm (Ammonia NH3) 
     >1000ppm (Methane CH4)
- Working temperature: -30~85°C
- Working humidity: 5~95%RH (No condensation)
- Storage temperature: -40~85°C
- Lifespan: >2 years (in the air)
- Circuit board size:12mm x 16mm
- Mounting hole size:Inner diameter 2mm/ outer diameter 4mm

### Documents

- [Product wiki](https://wiki.dfrobot.com/Fermion__MEMS_Gas_Sensor___MiCS-5524_SKU_SEN0440)
- [MiCS-5524 Datasheet](https://core-electronics.com.au/attachments/localcontent/86011e31a53db4f1bb6a3978de97a135_35719bc4e1d.pdf)
- [Schematics Diagram](https://core-electronics.com.au/attachments/localcontent/bc7b994d37fdaffc6e43624bda91cbde_43296e8c9ba.pdf)
- [Dimension and Component Layout](https://core-electronics.com.au/attachments/localcontent/065f0240e12ab11e527c4c6cf91799ba_324350d569b.pdf)

### Parts List

- Fermion: MEMS Gas Sensor - MiCS-5524 x1
- Black pin header-3Pin x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_3424.jpg)