MQ135 Air Quality Sensor Module – Gas Detection for Arduino & Raspberry Pi

Description

The MQ135 Air Quality Sensor Module is designed to detect a wide range of harmful gases, including ammonia, nitrogen oxides, alcohol, benzene, smoke, and carbon dioxide. It’s a perfect choice for monitoring air quality in homes, offices, factories, or DIY projects. Built with a high-sensitivity gas sensor, this module outputs an analog signal that can be easily read by Arduino, ESP32, or Raspberry Pi. It’s simple to use, durable, and ideal for environmental monitoring and air-quality control systems.

Key Features

• Detects ammonia (NH₃), nitrogen oxides (NOₓ), alcohol, benzene, smoke, CO₂, and other gases
• Wide detection range and high sensitivity
• Fast response and stable performance
• Adjustable sensitivity via onboard potentiometer
• Compatible with Arduino, ESP32, and Raspberry Pi
• Easy to interface with analog or digital I/O pins

What's in the Box

• 1 × MQ135 Gas Sensor Module