MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module - South Africa Arduino, Robotics & Electronics Supplier South Africa: R56.00
Leobot Electronics South Africa (Pretoria)
Waverley, Pretoria, South Africa
Nationwide delivery · Orders ready in 15 min · Stock shown is up-to-date · Collect or Deliver · 48h Delivery Time, · Free delivery for orders over R1000
Leobot Product Banner

Trusted Electronics Supplier in South Africa

Leobot Electronics is your trusted supplier for Arduino, robotics, IoT components, and electronic modules in South Africa. We stock a wide range of high-quality sensors, microcontrollers, modules, cables, and prototyping tools—ready for fast, nationwide delivery. Whether you're a hobbyist, student, or engineer, we provide the essential electronics you need to build, learn, and innovate. In addition to product sales, we offer custom development services including embedded systems, IoT design, CAD modelling, and smart device integration.

Leobot Electronics South Africa - Electronic Component Supplier & Development Service Provider

    • Leobot Electronics Online Shop

Leobot Arduino Nano Special Offer
MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module
  • MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module
  • MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module
  • MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module
  • MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module
  • MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module
  • MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module

#1640: MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module

R56.00


The MQ-2 gas sensor is sensitive to material used in clean air low conductivity producing tin oxide (sno2). When there is a situation in which the sensor is used for flammable gases, the conductivity in the sensor increases as the concentration of combustible gases in the air increases. 

This sensor detects a variety of flammable gases, is a low-cost sensor for different applications.

MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-2 gas sensor high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good. This sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications. 
 

Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc. 

 

  • Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
  • The switching signal having a DO (TTL) output and analog output AO ;
  • TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
  • Analog output voltage with the higher concentration of higher voltage.
  • A gas, natural gas, city gas , smoke better sensitivity.
  • There are four screw holes for easy positioning ;
  • Has a long life and reliable stability
  • Rapid response and recovery characteristic

 

Product Details

Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .

  • VCC: positive power supply (5V)
  • GND: power supply is negative
  • DO: TTL switching signal output
  • AO: analog signal output

More detailed information & instructions on MQ Gas Sensors is available at the Arduino Playground: https://playground.arduino.cc/Main/MQGasSensors

 


Product Details

Est. Packaging Size Specifications

N/A

Tutorials

Arduino Automated Plant Water Project
A simple but practical Arduino project to automatically water your plants, showing the usage of a 7-Segment Display, a Soild Moisture Sensor, a Temperature Sensor and a Relay.

Arduino Introduction
Introducing you to the awesome Arduino!

Simple Arduino RC Car/Robot
A guide to construct your own Arduino-based 2 Wheel-Drive Robot

Arduino F.A.Q
Arduino Frequently Asked Questions & Answers

Other Products in the same category

BUY

MQ-2 Smoke/Liquefied-Flammable Gas Sensor Module

Regular price: R56.00
Qty To Purchase:
In Stock: 5





GET NOTIFIED!

Get notified when new stock arrives! Simply provide your email address:


Email Address:



Bulk/Direct Imports!

Want more stock than we have on-hand? Let us import this product in bulk for you! Bulk Direct Import




Categories
 
  • Shipping Costs South Africa Arduino, Robotics & Electronics Supplier

Facebook


Youtube

Our YouTube channel features a diverse range of content, including electronics, gaming, and intriguing videos. Check it out to see what we've got in store for you here at our YouTube Channel

Discord

You can join in a community of like-minded people to discuss projects, solve problems and find opportunities at our Discord Channel

Steam

You can find some of our released PC games at our Steam Profile

GitHub

Important source code and libraries for Arduino can be found at our Github Repositories

Thingiverse

Important 3D models and designs by Leobot Electronics can be found on our Thingiverse Profile

Instagram

Cool projects, photos and artwork by Leobot Electronics can be found on our Instagram Profile

Shipping & Coverage

For South Africa, PostNet is used for shipping at R115 per order if delivered to your local PostNet or R105 if the parcel needs to be delivered to your doorstep via Aramax! Postage is FREE for orders over R1000!


We supply Arduino, Robotics and all of our other DIY Electronics throughout South Africa including Durban, Johannesburg, Pretoria, Cape Town, Bloemfontein and rural areas.


Partners

For industrial-level laser CNC machines have a look at our trusted partner www.PloughLaserMachine.com.


Core Services


Contact us

Admin Office:
1348B Breyer Avenue (Collections),

Waverley,,

Pretoria,

Gauteng,

South Africa,

Phone: 082 776 7668

Fax:

Email:info[a.t]leobot[d.o.t]net
(Please rather phone us than email due to spam)

Open weekdays from 8:30 AM - 4:30 PM;
Fridays 8:30- 4:00 PM;
Closed on Weekends

Leobot Electronics Developed PC Games

Leobot Electronics is also involved in the world of game development. We are dedicated to honing our skills and constantly improving, with the ultimate goal of releasing top-notch games. Our technical expertise is strong, but we're always looking to expand our capabilities. Currently, we're searching for in-house graphic artists to help bring our ideas to life with stunning graphics. While we have a ways to go, we're excited about the journey and can't wait to see what the future holds for us in game development.

© 2025 Developed by Leobot Electronics