MQ-135 Gas Sensor Air Quality

With this sensor module, you can easily measure the general air quality. The sensor has a digital output that is switched as soon as the trigger limit is reached. The trigger limit is set with the potentiometer on the module. The current sensor value is output via the analog output AO and can be read directly on a microprocessor, for example, an Arduino Uno. There is also an Arduino Library for the sensor, which you can find under the following link:

https://github.com/GeorgK/MQ135

If you have any questions or problems with control or suggestions for the product description, just send us an email or use the rating function. We are happy to help.

Connections:

• AO
  
• DO
  
• GND
  
• VCC
  

Technical Details:

• Type: MQ135
  
• Operating Voltage: 5V DC
  
• Operating Current: 150mA
  
• Digital Output: TTL Output 
  
• Analog Output: Analog Output
  
• Size: 33 x 20.7 x 22mm
  
• Weight: 7g
  

Package contents:

1x MQ-135 Gas Sensor Module