MQ-135 Air Quality Sensor

Product detailed description

The MQ-135 sensor is a popular module for air quality detection. It is used to measure the concentration of various gases in the air, such as ammonia (NH₃), nitrogen oxides (NOₓ), benzene, alcohol, smoke and other harmful substances. Its versatility and low cost make it suitable for use in domestic or industrial air quality monitoring projects.

Functional principle: Gas detection is based on the change in resistance of the semiconductor material in the presence of target gases.

The sensor detects:

• NH3
• NOx
• Alcohol
• Benzene
• smoke
• CO2
• etc.

Specifications:

• Supply voltage: 5V
• Supply current: 160mA
• Measuring range:
  • NH3: 10ppm-300ppm
  • Benzene: 10ppm-1000ppm
  • Alcohol: 10ppm-300ppm
• Resistance: 33 Ohm
• Analog output: with increasing concentration, the higher the concentration, the higher the voltage.
• Thermal output: <= 800mW
• Ambient temperature: -10 °C to 65 °C
• Humidity: <= 95%

Included in delivery:

• 1pc Air Quality Sensor MQ-135

Remark:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.