Product Images are shown for illustrative purposes only and may differ from actual product.

MQ-303A Alcohol Gas Sensor Module

  • Stock: Out Of Stock

    Availability: NotInStock priceValidUntil: 2026-04-19

  • Brand: Generic
  • SKU: 1814 |

Availability: NotInStock priceValidUntil: 2026-04-19

  • Rs. 295.00 (inc GST)
    Rs.250.00 + GST

    Qty :

GST Invoice: Available for all purchases; eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need a larger quantity or item not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

MQ-303A Alcohol Gas Sensor Module

MQ-303A sensor detects alcohol with high sensitivity and quick response; ideal for breath analyzers and automotive systems.

The MQ-303A Alcohol Gas Sensor Module is a tin dioxide semiconductor sensor designed for precise alcohol detection. With its high sensitivity and quick response time, it is perfect for applications such as portable breath alcohol checkers and ignition locking systems in automobiles. This sensor can effectively measure alcohol concentrations, providing reliable results for safety and compliance. The MQ-303A is a key component in any system requiring accurate gas detection, ensuring user safety and operational efficiency. Explore the potential of the MQ-303A Alcohol Gas Sensor Module for your projects today, and enhance your designs with dependable gas sensing technology.

At DNA, we offer top-quality GAS and Air Quality Sensors like the MQ-303A from trusted brands. Explore our range and find the right sensor for your needs. Check other GAS and Air Quality Sensor that we have in stock.

Are you looking for more electronic components? At DNA, we can help you find what you need. If you can't locate certain parts, we can import them for you. We support retail and bulk buying. Check out related items like Inductor, Nextion Display, LCD, and more. Contact Us.

Features of MQ-303A Alcohol Gas Sensor Module

  • High sensitivity to alcohol
  • Quick response time
  • Suitable for portable breath analyzers
  • Compact design
  • Easy to integrate

Specification of MQ-303A Alcohol Gas Sensor Module

  • Operating Voltage: 5V
  • Sensitivity Range: 0.1mg/L to 10mg/L
  • Response Time: < 10s

Applications of MQ-303A Alcohol Gas Sensor Module

  • Breath alcohol checkers
  • Automotive ignition locking systems
  • Industrial safety equipment
  • Home security systems

Related Links for MQ-303A Alcohol Gas Sensor Module

    MQ-303A Alcohol Gas Sensor Module Datasheet:

Package Includes

  • 1 X MQ-303A Alcohol Gas Sensor Module
Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (2)

Write a review

Note: HTML is not translated!
    Bad           Good
CAPTCHA verification code

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
How long does dispatch take?
In-stock items typically dispatch within 1–2 working days. If any item needs sourcing, we’ll update you with the expected timeline before dispatch.
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
Do you accept bulk / OEM orders?
Yes — we handle bulk orders and OEM supply requests across India. Share part number and quantity for a quote.
Do you supply branded parts (Texas Instruments, ST, Vishay, etc.)?
Yes — if a brand/manufacturer is listed on the product page. If not listed, share the exact manufacturer + part number and we’ll check sourcing options.

NEW Products

Product Page : New Products

XL4501 Buck Converter

XL4501 Buck ConverterXL4501 DC to DC Converter SMD ICThe XL4501 is a 150KHz fixed frequency PWM buck..

Rs.96.76 (inc GST)
Rs.82.00 + GST

SKU: 1670 | DAB691
Stock: 8

SS Switch IP67 16mm 12 to 24 Volts, Latching, Green Ring Indicator (Flat Head)

SS Switch IP67 Latching 16mm with Green Ring Indicator SS Switch IP67, Latching, 16mm, 12-24V, Wate..

Rs.369.69 (inc GST)
Rs.313.30 + GST

SKU: 8608 | DAH728
Stock: 10

TCRT5000L Optical Sensor

TCRT5000LReflective Optical Sensor with Transistor OutputThe TCRT5000 and TCRT500L are reflective se..

Rs.53.10 (inc GST)
Rs.45.00 + GST

SKU: 262 | DAA621
Stock: 2

SINDA 16X2 Green LCD Display

SINDA 16X2 Green LCD Display Module SINDA 16X2 LCD Display with Green Backlight, 16x2 Character Form..

Rs.159.30 (inc GST)
Rs.135.00 + GST

SKU: 7276 | DAD185
Stock: 9

Have You Seen

Product Page : Have You Seen

Heat Shrink Sleeve 4mm Black

Heat Shrink Sleeve 4 mm BlackCB-HFT 4 mm Black Heat Shrink Sleeve for insulation with a 2:1 shrink r..

Rs.18.03 (inc GST)
Rs.15.28 + GST

SKU: 2374 | DAB938
Stock: 50

Nextion Discovery NX3224F028 2.8" Resistive Touch Display

Nextion NX3224F028 2.8" Discovery Resistive Touchscreen DisplayNX3224F028 - 2.8" Resistive Touchscre..

Rs.2,655.00 (inc GST)
Rs.2,250.00 + GST

SKU: 3179 | DAD103
Stock: 20

1 Way Push Button Box

1 Way Push Button Box1 Way Empty Push Button BoxThis  is black and white empty box for push but..

Rs.94.40 (inc GST)
Rs.80.00 + GST

SKU: 1693 | DAB986
Stock: 1

Soldron Soldering Iron 100 Watts

Soldron 100 Watts Soldering Iron Soldron 100 Watts Soldering Iron, ideal for heavy electrical work, ..

Rs.1,012.44 (inc GST)
Rs.858.00 + GST

SKU: 2341 | DAC091
Stock: 1

Related Products

MQ3 Alcohol Gas Sensor Module

MQ3 Alcohol Gas Sensor Module

GAS MQ3 Alcohol Gas Sensor Module for MicrocontrollersMQ3 Alcohol Gas Sensor Module with digital out..

Rs.129.80 (inc GST)
Rs.110.00 + GST

SKU: 513 | DAB409
Stock: 5
H2010 10mm Photoelectric Sensor

H2010 10mm Photoelectric Sensor

H2010 10mm Photoelectric Sensor H2010 Photoelectric Sensor with high sensitivity, non-contact detect..

Rs.29.50 (inc GST)
Rs.25.00 + GST

SKU: 6069 | DAG901
Stock: 800
Smart Digital Human PIR Motion Sensor BS412 IOT Sensor For Security Homes Toys And Led Lighting

Smart Digital Human PIR Motion Sensor BS412 IOT Sensor For Security Homes Toys And Led Lighting

Smart Digital Human PIR Motion Sensor BS412 IoT Sensor BS412 IoT sensor detects human motion for sec..

Rs.128.50 (inc GST)
Rs.108.90 + GST

SKU: 7618 | DAH401
Stock: 10
Methyl mercaptan (CH3SH) sensor Module

Methyl mercaptan (CH3SH) sensor Module

Methyl mercaptan (CH3SH) sensor ModuleOizom Methyl Mercaptan Sensor Module for accurate CH3SH detect..

Rs.17,639.24 (inc GST)
Rs.14,948.51 + GST

SKU: 10400 | DAJ340
Stock: 0