SKU: SEN0376
This is DFRobot’s Gravity Alcohol Sensor (Arduino-compatible). It measures 0-5ppm alcohol concentration, supports I2C/UART, uses electrochemistry, is factory-calibrated, with strong anti-interference, high stability/sensitivity, 2-year lifespan, 0.01ppm resolution, 3.3-5.5V input. Works with Arduino/ESP32/Raspberry Pi, has Gravity interface and sample programs for easy detector building.
Downloadable Resources
1. Example Code for Arduino-Read via I2C
Download the codes into the UNO board and open the serial monitor to check the results. Reading Alcohol concentration, A concentration of one part per million (PPM).
2. Example Code for Arduino-Read via UART
Download the codes into the UNO board and open the serial monitor to check the results. Reading Alcohol concentration, A concentration of one part per million (PPM) via UART communication.
Reference
FAQ
Hi, I bought the sensor 6 months back and now the reading is stuck at 0.01ppm and not increasing even while interfering with alcohol. What should I do?
Hi, Sorry, there are no detailed parameters related to the calibration accuracy of this sensor at present. Since the sensor is an electrochemical sensor, the data may be offset when used. Please try to maintain a stable voltage and avoid the sensor from contacting interference gas (see wiki for interference gas).
What is the size of the white detection area of this sensor?
As shown in the figure below, the diameter of the white circular area is 11mm.
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