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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...
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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 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.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- 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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