MQ135 Gas Sensor Module for Air Quality Monitoring – CO2, NH3, Benzene Detection

Overview
The MQ135 Gas Sensor is a widely used air quality sensor capable of detecting gases such as ammonia (NH3), nitrogen oxide (NOx), alcohol, benzene, smoke, and carbon dioxide (CO2). It is ideal for environmental monitoring projects, indoor air quality systems, and DIY electronics.

Features

• High sensitivity to a wide range of gases

• Fast response and recovery time

• Analog output signal

• Operating Voltage: 5V

• Compatible with Arduino, ESP32, and Raspberry Pi

Applications

• Air quality monitoring systems

• Smart home air purification

• Environmental sensing for IoT

• Industrial gas leakage detection

Technical Specifications

• Detection range: 10 to 1000 ppm

• Preheat time: ~20 seconds

• Operating voltage: 5V

• Interface: Analog

Package Includes

• 1x MQ135 Gas Sensor Module

Learn More with Our YouTube Tutorial

To get started with the MQ135 Gas Sensor and see how it integrates into real-world projects, check out our step-by-step tutorial on MyTechLearner. This video covers everything from wiring the sensor to interfacing it with Arduino, ESP32, and Raspberry Pi for air quality monitoring.

Watch the Tutorial Here:
[https://youtu.be/qpsn7aTG7Ko?si=Vld0vdgd_HmWinM8]