Air Quality sensor Module MQ135 (MQ-135)

Description

FEATURES

• Detects NH3, NOx, alcohol, benzene, smoke, CO2, etc.
• Operating voltage 5V
• Operating current 40mA
• Both digital and analog output
•  
• Popular sensor – a lot of examples available for different platforms 
• Port explanation : AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input

DOCUMENTS

• SNS-MQ135 datasheet
• Setting up SNS-MQx sensors
• Experimenting with gas sensors and Arduino