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Alcohol tester with LED indication and audible buzzer – in DIY Kit

By on October 2, 2023
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With its high sensitivity and rapid response times, this kit-based device, utilizing the MQ-3 sensor, accurately detects the quantity of alcohol vapors in the breath, providing timely alerts both visually, through LEDs, and audibly with a sound alarm.

When combined with an alarm system, this kit can be used indoors to detect the presence of various gases, LPG, gasoline aerosols, and alcohol, activating a relay as needed. Onboard, the

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About Boris Landoni

Boris Landoni is the technical manager of Open-Electronics.org. Skilled in the GSM field, embraces the Open Source philosophy and its projects are available to the community.

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