MQ 135 Air Quality Gas Detector Sensor

Product overview

The MQ-135 is a gas sensor module that can be used to detect a variety of gases, including but not limited to carbon dioxide, methane, alcohol, benzene, smoke, and other pollutants. It's commonly used in air quality monitoring and gas detection applications. Here are some key features and information about the MQ-135 Air Quality/Gas Detector Sensor Module:

Key Features :

 Gas Detection : The MQ-135 sensor is sensitive to a range of gases and can be used to detect the presence of different types of pollutants in the air.

 Analog Output : The module typically provides an analog voltage output that varies based on the concentration of the detected gas.

 Heater Element : The MQ-135 sensor has an internal heater element that needs to be powered for the sensor to operate effectively. The heater warms up the sensing element for accurate readings.

 Sensitivity to Multiple Gases : The MQ-135 sensor is sensitive to various gases, and its sensitivity can be adjusted for specific applications.

 Arduino Compatibility : The module can be easily interfaced with microcontrollers like Arduino to build air quality monitoring systems.

Wiring:

• Connect the MQ-135 Air Quality/Gas Detector Sensor Module to your Arduino as follows:
• Connect the VCC pin of the module to the 5V pin on the Arduino.
• Connect the GND pin of the module to the GND pin on the Arduino.
• Connect the AOUT pin of the module to an analog input pin on the Arduino (e.g., A0).
• Connect the DOUT pin (if available) to a digital input pin on the Arduino for digital output.

Technical specifications

What's included

• 1 x MQ 135 Air Quality Gas Detector Sensor.