MQ-135 Gas Sensor Module

MQ135 gas sensor module for air quality with digital and analog output. The sensitive material of the MQ135 gas sensor is SnO2, which has a lower conductivity in clean air. When the target combustible gas is present, the conductivity of the sensors increases as the concentration of the gas increases. The MQ135 gas sensor is very sensitive to ammonia and benzene vapors, as well as smoke and other harmful gases. It is affordable and suitable for various applications. Used for family, ambient harmful gas detection, use for ammonia, aromatics, sulfur, benzene vapor and other harmful gases, gas detection

Features: 

• Fast response and recovery
• Adjustable sensitivity
• Stable, long life and low cost
• Both digital and analog output
• Output voltage boosts along with the concentration of the CO gases increases.
• AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input.
  
• Its made in India 
• It has four holes for mounting purpose and the diameter of holes are 3.5mm

Specifications