MQ135 Air Quality Sensor – Gas & Pollution Detection Module

The MQ135 Air Quality Sensor is a highly sensitive gas detection module designed to measure air quality by detecting a wide range of harmful gases. It is commonly used in environmental monitoring, smart home systems, and air purifiers.

This sensor can detect NH3 (Ammonia), NOx, alcohol, benzene, smoke, CO2, and other harmful gases. It provides fast response time, stable performance, and can be easily interfaced with Arduino, Raspberry Pi, and other microcontrollers.

Key Features:

• Detects harmful gases: NH3, NOx, benzene, CO2, alcohol, smoke

• High sensitivity & fast response

• Analog output for real-time monitoring

• Easy to use with Arduino & microcontrollers

• Long life and reliable performance

• Ideal for indoor air quality monitoring