Description: The MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module is a highly useful device for detecting air quality and hazardous gases. This module is designed to provide accurate and reliable readings of various pollutants and harmful substances in the air. With its sensitive sensor technology, it can detect gases such as ammonia, benzene, smoke, and other volatile organic compounds. It is easy to integrate into projects and can be used in a variety of applications, including air quality monitoring systems, environmental sensing, and safety alarms. The MQ135 module offers a convenient way to monitor the air around you and take appropriate actions to ensure a healthy and safe environment.