MQ-135 Air Quality Sensor Harmful Gas Detection

The MQ-135 Air Quality Gas Sensor is a highly sensitive gas detection module designed for monitoring a wide range of harmful gases in the environment. It is capable of detecting gases such as ammonia (NH3), nitrogen oxides (NOx), alcohol vapors, benzene, smoke, and carbon dioxide (CO2 equivalent).

Due to its high sensitivity, stable performance, and long operational life, this sensor is widely used in air quality monitoring systems for both domestic and industrial applications. It is ideal for building pollution monitoring devices, smart environmental systems, and portable gas detection units.

The sensor operates on a simple interface and provides analog output proportional to gas concentration, making it easy to integrate with microcontrollers like Arduino, ESP32, and Raspberry Pi.

Features:

1. High sensitivity to NH3, NOx, benzene, and smoke
2. Stable output with long operational life
3. Low-cost air quality monitoring solution
4. Easy interface with microcontrollers
5. Fast response and recovery time
6. Suitable for indoor and industrial use

Specifications:

1. Product Type: Air Quality Gas Sensor Module
2. Sensor Model: MQ-135
3. Operating Voltage: 5V DC
4. Output: Analog + Digital (TTL)
5. Detectable Gases: NH3, NOx, Benzene, Alcohol, Smoke, CO2 equivalent
6. Detection Range: 10–1000 ppm (varies by gas)
7. Sensitivity: High to harmful air pollutants
8. Preheating Time: 24–48 hours recommended
9. Operating Temperature: -10°C to 50°C
10. Lifespan: Long-lasting sensor
11. Weight : 4g

Package Includes:

1 x MQ-135 Air Quality Sensor Harmful Gas Detection