{"title":"Alcohol sensor for Arduino","handle":"alcohol-sensor-for-arduino","url":"/products/alcohol-sensor-for-arduino","description":"An alcohol sensor module for Arduino with both digital (TTL) and analog output. It detects alcohol vapour in the 10–1000 PPM range, with analog output voltage increasing proportionally with concentration. The module also responds to LPG, natural gas, city gas, and smoke.\n\nThe board features a power indicator LED, a potentiometer for adjusting the digital threshold, and a simple 4-pin interface (VCC, GND, DO, AO) for direct connection to Arduino or other microcontrollers.\n\nKey Features\n\n\nDual Output – Digital (TTL) switch output and analog voltage output\n\nDetection Range – 10–1000 PPM alcohol\n\nAnalog Output – 0.1–0.3V (clean air) up to ~4V (high concentration)\n\nDigital Output – TTL low when threshold exceeded\n\nPower Indicator – On-board LED\n\nFast Response – Rapid response and recovery\n\n\nSpecifications\n\n\nInput Voltage – 5V DC\n\nCurrent Draw – 150mA\n\nDO Output – TTL (0.1V / 5V)\n\nAO Output – 0.1V to ~4V\n\n\nPin Connections\n\n\nVCC – 5V positive\n\nGND – Ground\n\nDO – Digital TTL switch output\n\nAO – Analog signal output\n\n\nIdeal For\n\nBreathalyser and alcohol detection projects\nAir quality monitoring with Arduino\nGas detection and environmental sensing\n\n\nPackage Contents\n\n1× Alcohol sensor module\n","vendor":"Little Bird","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":8406,"title":"Default Title","sku":"LB-LR0205","price":5.26,"on_sale":false,"in_stock":true,"available_quantity":30,"option1":"Default Title"}]}