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: 2026-05-31

  • Brand: Generic
  • SKU: 1814 |

Availability: NotInStock priceValidUntil: 2026-05-31

  • 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 delivery take?
Delivery time depends on your PIN code and the courier network. Tracking is shared after dispatch.
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
What if I need a component that is not listed on your website?
Contact us with the part number or requirement — we may be able to source it or suggest an equivalent.
Will you send the same brand/manufacturer every time?
For some passive components, brand may vary based on availability. If you need a specific brand or matching lot, mention it before ordering and we’ll advise availability.

NEW Products

Product Page : New Products

44 Pin PLCC IC Socket

44 Pin PLCC IC SocketIC sockets also reduce the possibility of damaging the board when swapping out ..

Rs.59.00 (inc GST)
Rs.50.00 + GST

SKU: 734 | DAA653
Stock: 14

12 PIN 5.08MM PITCH RIGHT ANGLE FEMALE COMBICON CONNECTOR

Combicon 12 Pin Right Angle Connector 12 Pin Right Angle Female Combicon Connector with 5.08mm pitc..

Rs.55.22 (inc GST)
Rs.46.80 + GST

SKU: 8656 | DAH953
Stock: 3

Semikron SKM195GB066D IGBT Module

Semikron SKM195GB066D IGBT Module SKM195GB066D IGBT Module for high voltage applications with 600V, ..

Rs.3,142.34 (inc GST)
Rs.2,663.00 + GST

SKU: 3018 | DAE775
Stock: 1

SN65HVD233 SOIC-8P TRANSCEIVER SMD IC

SN65HVD233 High-Speed CAN Transceiver SMD IC SN65HVD233 SMD IC for CAN communication, 1 Mbps data ra..

Rs.286.74 (inc GST)
Rs.243.00 + GST

SKU: 9111 | DAF658
Stock: 5

Have You Seen

Product Page : Have You Seen

PANASONIC 1000MF/25V ELECTROLYTIC CAPACITOR ( PART NO.-ECA1EHG102)

Panasonic 1000µF 25V Electrolytic Capacitor ECA-1EHG102 - 1000µF capacitance, 25V voltage, low ESR,..

Rs.35.40 (inc GST)
Rs.30.00 + GST

SKU: 7056 | DAG668
Stock: 1

Arduino Leonardo

Arduino Leonardo R3 Microcontroller Board Arduino Leonardo R3 Board with ATmega32U4, 20 Digital I/O..

Rs.866.12 (inc GST)
Rs.734.00 + GST

SKU: 1344 | DAB269
Stock: 1

HLK M50 Module

HLK-M50 WiFi Module for IoT Applications HLK-M50 WiFi Module supports 2.4GHz IEEE802.11b/g/n with m..

Rs.268.45 (inc GST)
Rs.227.50 + GST

SKU: 2213 | DAB786
Stock: 9

SN74LVC1G79DBVR Flip Flop SMD IC

Texas Instruments SN74LVC1G79DBVR Flip Flop SMD IC SN74LVC1G79DBVR Flip Flop SMD IC with low-voltage..

Rs.25.29 (inc GST)
Rs.21.44 + GST

SKU: 8637 | DAH919
Stock: 10

Related Products

Multitech Model No: HSLK-100

Multitech Model No: HSLK-100

Multitech Hand Tool Set HSLK-100 Multitech HSLK-100 Hand Tool Set includes soldering iron, pliers, ..

Rs.230.10 (inc GST)
Rs.195.00 + GST

SKU: 3345 | DAD074
Stock: 1
Panasonic ECQ-U2A334MLA Plastic Film Capacitor

Panasonic ECQ-U2A334MLA Plastic Film Capacitor

Panasonic ECQ-U2A334MLA Plastic Film Capacitor Panasonic ECQ-U2A334MLA, 0.33 µF, 275V, Low Dissipat..

Rs.37.51 (inc GST)
Rs.31.79 + GST

SKU: 7209 | DAG517
Stock: 0
MULTICOMP PRO MCUST10P40B07RO Ultrasonic Sensor

MULTICOMP PRO MCUST10P40B07RO Ultrasonic Sensor

MULTICOMP PRO Ultrasonic Sensor MCUST10P40B07RO MCUST10P40B07RO Ultrasonic Sensor with 40.1 kHz freq..

Rs.290.28 (inc GST)
Rs.246.00 + GST

SKU: 7910 | DAH392
Stock: 10
74LVC245AD OCTAL BUS TRANSCEIVER SMD IC

74LVC245AD OCTAL BUS TRANSCEIVER SMD IC

74LVC245AD Octal Bus Transceiver SMD IC 74LVC245AD SMD IC for bidirectional data transfer with high-..

Rs.292.05 (inc GST)
Rs.247.50 + GST

SKU: 8755 | DAI041
Stock: 0
24V Capacitive Contactless Externally Liquid Level Sensor

24V Capacitive Contactless Externally Liquid Level Sensor

24V Capacitive Contactless Liquid Level Sensor 24V Capacitive Contactless Liquid Level Sensor detect..

Rs.462.00 (inc GST)
Rs.391.52 + GST

SKU: 8889 | DAI227
Stock: 0