DFRobot Fermion MEMS Ethanol EtOH Gas Detection Sensor (Breakout, 1-500ppm)


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SKU: 1680987
  1. Compact size, measuring only 13*13*2.5mm
  2. Low power consumption, operating current <20mA
  3. High sensitivity and rapid response recovery
  4. Advanced MEMS technology
  5. Gas detected: Ethanol (EtOH)
  6. Sensitivity: R0(in air)/Rs(in 150ppm EtOH) ≥ 3
  7. Lifespan: ≥5 years (in air)


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Brand: DF Robot
Category: Gas and Dust Sensor

This is DFRobot Fermion MEMS Ethanol EtOH Gas Detection Sensor (Breakout, 1-500ppm). Fermion: MEMS Ethanol EtOH 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. The sensor can qualitatively measure ethanol concentration and is suitable for ethanol gas leakage and portable ethanol detector.

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.


  • Breathalyzer: measures the blood alcohol content (BAC) of a person by analyzing their breath.
  • Indoor air quality monitoring: monitors the level of volatile organic compounds (VOCs) in the indoor environment.
  • Food quality control: measure EtOH emission from food samples and determine their shelf life or quality.


Note: This sensor is capable of only qualitative measurements. For quantitative measurements, kindly consider purchasing the Gravity: Factory Calibrated Electrochemical CO Sensor (0-1000 ppm, I2C & UART).


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.


For more info., click below.


  1. Easy to use.
  2. Compact size, measuring only 13*13*2.5mm
  3. Low power consumption, operating current <20mA
  4. High sensitivity and rapid response recovery
  5. Advanced MEMS technology
  6. Gas detected: Ethanol (EtOH)
  7. Sensitivity: R0(in air)/Rs(in 150ppm EtOH) ≥ 3
  8. Lifespan: ≥5 years (in air)
  9. Good quality product

Package Includes:

1 x DFRobot Fermion MEMS Ethanol EtOH Gas Detection Sensor (Breakout, 1-500ppm)

1 x 2.54mm pitch header pin

SKU: 1680987 Category:
Detecting Range


Detection Gas


Operating Voltage (VDC):

3.3 – 5 V

Max. Operating Current (mA)


Output Signal

Analog Voltage

Operating Temperature (°C)


Operating humidity

15-90%RH (non-condensing)


≥5 years (in air)

Length (mm):


Width (mm):


Height (mm):


Weight (g):

1 (approx)

Shipping Weight 0.012 kg
Shipping Dimensions 6 × 6 × 3 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China