Product Name:

MQ-135 Air Quality Gas Sensor Module – Multi-Gas Detection for Pollution Monitoring

Product Description:

The MQ-135 Air Quality Gas Sensor Module is a high-sensitivity gas detection device designed to measure a wide range of harmful gases in the air. It is widely used in air pollution monitoring, indoor air quality systems, and IoT environmental projects.

This sensor can detect gases such as ammonia (NH₃), sulfur compounds, benzene, smoke, CO₂, and other harmful pollutants. The module includes both analog and digital outputs, making it easy to interface with microcontrollers like Arduino, Raspberry Pi, ESP32, ESP8266, PIC, ATmega, and STM32.

Key Features:

• Detectable Gases: NH₃, alcohol, benzene, smoke, CO₂, and other air pollutants

• Output: Analog + Digital (threshold adjustable via potentiometer)

• Operating Voltage: 5V DC

• High sensitivity to harmful gases

• Fast response and stable performance

• Long-lasting sensing element

• Easy 4-pin module interface

• Works with all major microcontrollers

Applications:

• Air quality and pollution monitoring

• Indoor air purification systems

• IoT environmental monitoring devices

• Smart home automation

• Industrial gas detection

• School & university lab experiments

• Robotics and automation projects

Why Choose the MQ-135 Module?

The MQ-135 is ideal for multi-gas detection, offering reliable environmental monitoring at a low cost. It is perfect for hobbyists, engineers, and IoT developers.