Description How to choose a gas sensor ? Alcohol sensor is semiconductor sensor for alcohol detection. It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector. Specifications - Power requirements: 5 VDC @ ~120 mA (heater on) - Detection Gas: Alcohol - Concentration: 20-1000ppm Alcohol - Interface: 1 TTL compatible input (SEL), 1 TTL compatible output (DAT) - Dimension: 40 x 20 x12 mm - Heater Voltage: 0.9V / 0.1V AC or DC - Heater Current: 120 20mA Application Ideas - Alcohol level over-limit alarm - Stand-alone/background sensing device - Environmental monitoring equipment For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product. https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2017-08-05 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2017-10-18 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2018-01-25 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2021-05-21 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2021-12-13 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2022-06-06 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2023-09-04 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2025-02-08 https://elecena.pl/product/9696381/101020044-arduino-grove-alcohol-sensor-mq303a 2026-02-20