DFRobot
Fermion: MEMS Ethanol EtOH Gas Detection Sensor (Breakout, 1-500ppm)
The Fermion MEMS Ethanol (EtOH) Gas Detection Sensor uses micro-electromechanical system (MEMS) technology for compact, low-power ethanol gas detection. With...
The Fermion MEMS Ethanol (EtOH) Gas Detection Sensor uses micro-electromechanical system (MEMS) technology for compact, low-power ethanol gas detection. With a detection range of 1–500 ppm, it provides qualitative measurement of ethanol concentration via an analogue voltage output.
The MEMS design delivers a small footprint (13 × 13 × 2.5 mm), low power consumption (<20 mA), minimal heat generation, short preheating time, and fast response recovery. It operates at 3.3–5 V, making it compatible with Arduino and other common microcontrollers.
Key Features
- MEMS Technology – Compact, low power, fast response and recovery
- 1–500 ppm Detection Range – Suitable for ethanol gas leak detection
- Analogue Voltage Output – Simple integration with any ADC-equipped microcontroller
- 3.3–5 V Operating Voltage – Arduino and Raspberry Pi compatible
- Low Power – Operating current <20 mA
- Long Lifespan – ≥5 years in air
Specifications
- Gas Detected – Ethanol (EtOH)
- Detection Range – 1–500 ppm
- Operating Voltage – 3.3–5 V
- Operating Current – <20 mA
- Output Signal – Analogue voltage
- Sensitivity – R0(air) / Rs(150 ppm EtOH) ≥ 3
- Operating Temperature – −10 to 50 °C
- Operating Humidity – 15–90% RH (non-condensing)
- Lifespan – ≥5 years (in air)
- Dimensions – 13 × 13 × 2.5 mm
Precautions
- Remove the protective film before use
- Avoid exposure to volatile silicon compounds (silicone adhesive, hair gel, silicone rubber)
- Avoid high concentrations of corrosive gases (H₂S, SOx, Cl₂, HCl)
- Prevent contamination from alkalis, alkali metal salts, and halogens
- Avoid contact with water, condensation, or freezing conditions
- After extended storage, preheat for at least 24 hours before use
- Do not use in safety-critical or life-support systems
Ideal For
- Breathalyser prototypes and alcohol detection
- Indoor air quality monitoring (VOC detection)
- Food quality and shelf-life assessment
- Ethanol gas leak detection
Package Contents
- 1× Fermion MEMS Ethanol (EtOH) Gas Sensor (breakout)
- 1× 2.54 mm pitch header pin
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- ppm
- ppm means parts per million, a common way to express very small gas concentrations in air. For CO₂ sensors, the ppm range tells you what levels the sensor can measure, such as normal indoor air through to poorly ventilated spaces.
- 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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Supplier page — dfrobot.com
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