MQ3 Alcohol Detector Gas Sensor

Marsoni

M251S

$109.00

Get it in 3 business days with 1 day shipping. Friday, May 29

MQ3 Alcohol Detector Gas SensorFeatures: High quality double panel design, with power indicator and TTL output signal. Have DO switch signal(TTL) output and AO analog signal output. TTL output signal for low level effectively. (when the low output electric signal lights at ordinary times, can directly connect single chip microcomputer or relay module) Analog output voltage with concentration, the higher concentration, the higher voltage. Has better sensitivity with the liquefied

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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May run a little small. I wear a large, my sport coat is a 44L I'm tall, no belly. Ordered the large knowing the arms would be a little short, jacket did not fit lacked 4" of coming together at button, returned. (Amazon is easy & great to do business with) Ordered the XL that was a keeper. I like the lighter material for warmer weather, evenings, etc., the color was accurate. Just what I was looking for.

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Reviewed in the United States on March 21, 2026

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Lonnie

Pawtucket, US

★★★★★ 5

Surpirsed me!

Color: Black, Size: 3X-Large

This ended up exceeding my expectations! I love how it feels, but the size was perfect and comfy! Didn’t feel restricted!

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Reviewed in the United States on December 18, 2025

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Jorge

Fort Morgan, US

★★★★★ 4

Loved the fit

Color: Khaki, Size: Medium, Color: Khaki, Size: Medium

I absolutely love this jacket! The fit is perfect, flattering, and true to size. The material feels premium, and the quality is outstanding. It’s not only stylish but also durable, making it a versatile addition to my wardrobe. Highly recommended!

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Reviewed in the United States on December 4, 2024

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Isaac

Charlottesville, US

★★★★★ 5

Great product

Color: Light Blue, Size: Large

Great product

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Reviewed in the United States on May 19, 2026

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Will Barnett

Houston, US

★★★★★ 1

Total disappointment

Color: White, Size: X-Large, Color: White, Size: X-Large

Coofandy is my go to shop. Has been for years! Need this blazer for an event tomorrow, and it came in today with a yellow stain from inside the package. Can't return it because I need it, so it's going straight to the cleaners. Fits perfect as normal. This is my first, under 5 star review for Coofandy.

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Reviewed in the United States on November 1, 2024