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DFRobot Gravity Alcohol Sensor (0-5ppm)


In stock

SKU: 1209992
  1. Operating Voltage: 3.3~5.5V DC.
  2. Power: 0.05W(5V).
  3. Signal Output: I2C, UART(0~3V).
  4. Factory calibrated, accurate data
  5. High sensitivity, low power
  6. Stable performance, anti-interference
  7. I2C and UART outputs


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6 Months Warranty
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Brand: DF Robot
Category: Gas and Dust Sensor, Temperature & Humidity Sensor, Other Sensors

This is an Arduino-compatible alcohol sensor module from DFRobot with a 0-5ppm measuring range, supporting I2C and UART outputs. Aiming at fast and accurate detection of alcohol gas concentration in the air, the sensor is well applicable to the small alcohol concentration measurement in breathalyzers, smart vehicles, and so on. Based on the electrochemistry principle, this alcohol sensor has been calibrated before the factory. It is characterized by strong anti-interference, high stability, and sensitivity, and up to 2 years of service life. The module supports 0.01ppm(10ppb) resolution and 3.3~5.5V wide-range voltage input and works well with mainstream controllers like ArduinoESP32, and Raspberry Pi. With the easy-to-use Gravity interface and the sample program provided by us, you can conveniently build your alcohol concentration detector using this sensor.

Useful link:

DFRobot Gravity Alcohol sensor tutorial.


  1. Detected Gas: alcohol.
  2. Interfering Gas: benzene(C6H6), toluene(C7H8), acetic acid(CH3COOH), hydrogen sulfide(H2S), carbon monoxide(CO).
  3. Factory-calibrated, accurate data
  4. High sensitivity, low power
  5. Stable performance, anti-interference
  6. I2C and UART outputs
  7. Excellent linear output
  8. Long service life
  9. Compatible with 3.3~5V controllers
  10. Reverse-connection protection

Useful Link:

Getting Started with DFRobot Gravity Alcohol Sensor

Packages Includes:

1 x DF Robot Gravity Alcohol Sensor (0-5ppm).



Operating Voltage (V)

3.3 to 5.5



Signal Output

I2C, UART(0~3V)

Response Time(s)


Preheat time


Operating Temperature (°C)


Operating humidity

15~90%RH (No condense).

Storage Temperature


Dimensions (mm)


Shipping Weight 17 kg
Shipping Dimensions 6 × 5 × 2 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. Reimbursement or 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