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Fermion: MEMS Formaldehyde HCHO Gas Detection Sensor (Breakout, 0-3ppm)

All Products Breakouts Gas & Air Quality Sensors New Arrivals Sensors Environmental (temperature, humidity, air quality) DFRobot Sensors & Modules
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Fermion: MEMS Formaldehyde HCHO Gas Detection Sensor employs state-of-the-art micro-electromechanical system (MEMS) technology, endowing the sensor with comp...

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Fermion: MEMS Formaldehyde HCHO Gas Detection Sensor employs state-of-the-art micro-electromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA), minimal heat generation, short preheating time, and swift response recovery. This sensor qualitatively measures the concentration of formaldehyde gas, making it suitable for applications in air purifiers, HVAC systems, smart wearables, portable detectors, and more.
The MEMS series currently encompasses 11 different types of gas sensors (HCHO, CO, CH4, VOC, NH3, H2S, EtOH, Smoke, Odor, H2, NO2), which can be combined as per specific requirements.
Please note: This sensor is capable of qualitative measurements only. For quantitative measurements, kindly consider purchasing the Gravity: Factory Calibrated Electrochemical Gas Sensor Series.

Figure: Wiring Diagram of Fermion: MEMS HCHO Sensor and Arduino UNO

Precautions for use
Kindly remove the protective film before usage.
To prevent exposure to volatile silicon compounds vapors (such as silicone adhesive, hair gel, silicone rubber, or other locations where volatile silicon compounds are present).
Avoid exposure to high concentrations of corrosive gases (such as H2S, SOX, Cl2, HCl, etc.).
Prevent contamination from alkalis, alkali metal salts, and halogens.
Refrain from prolonged exposure to extreme environments (such as high temperatures, high humidity, high pollution).
Avoid contact with water, condensation, and freezing.
Minimize excessive vibration, impact, and dropping.
Please refrain from employing this module in systems that involve personal safety concerns.
For extended periods of non-usage, it is advisable to preheat the module for at least 24 hours.

Features
Compact size, measuring only 13*13*2.5mm 
Low power consumption,operating current <20mA
High sensitivity and rapid response recovery
Advanced MEMS technology

Applications
Air purifiers
HVAC systems
Smart wearables
Portable detectors 

Specification
Gas detected: HCHO
Detection range: 0-3ppm
Operating voltage: 3.3-5V
Operating current: <20mA
Output signal: Analog voltage
Sensitivity: R0(in air)/Rs(in 0.4ppm HCHO) ≥ 1.8
Operating temperature: -10-50°C
Operating humidity: 15-90%RH (non-condensing)
Lifespan: ≥3 years (in air)
Dimension: 13×13 x 2.5mm/ 0.0.51×0.51x0.1"

Projects
Project: Building an Electronic Nose with MEMS Gas Detection Sensor Breakout Series and Edge Impulse Platform
Introduction: 
In this project, I developed an electronic nose using DFRobot mems series gas sensors and the Edge Impulse platform, which is capable of identifying the scents of beverages and fruits.


Documents

Shipping List
Fermion: MEMS Formaldehyde HCHO Gas Detection Sensor (breakout) × 1
2.54mm pitch header pin × 1

Jargon buster

Plain-language definitions for the technical terms used above.

breakout
A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
Gravity
Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
VOC
Volatile organic compounds are gases released from things like paints, cleaners, smoke, and some plastics. A VOC reading helps indicate indoor air quality, but it is usually an index or estimate rather than a direct identification of each chemical.

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All Products Breakouts DFRobot New Arrivals

Sensors & Input

Environmental (temperature, humidity, air quality) Gas & Air Quality Sensors Sensors Sensors & Modules

CE Certificate

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RoHS Certificate

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Supplier page — dfrobot.com

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Resources & Downloads

Guides, code examples, and more

SEN0563 fermion mems hcho sensor dimension 1.0

Mechanical Drawings · ZIP · 957.3 KB

SEN0563 fermion mems hcho sensor schematics 1.0

Schematic · ZIP · 957.3 KB

SEN0563 fermion mems hcho sensor datasheet 1.0

Datasheet · ZIP · 6.4 MB

SEN0563 fermion mems hcho sensor library 1.0

Example Code · ZIP · 31.4 KB

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