MQ 135 Air Quality/Gas Detector Sensor Module For Arduino
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Sensitivity: It exhibits varying sensitivity to gases like ammonia, nitrogen dioxide, benzene, carbon monoxide, and other harmful substances.
Principle: The sensor uses a semiconductor gas sensor where the resistance of the sensing material changes based on the concentration of gases in the air.
Analog Output: The module typically provides an analog voltage output that can be correlated to the concentration of the detected gas.
Versatility: Due to its broad sensitivity to multiple gases, it's suitable for diverse air quality monitoring projects.
Affordability: The MQ-135 sensor module is cost-effective, making it a popular choice for hobbyists and environmental monitoring enthusiasts.
Outdoor Air Quality: Deployed in outdoor environments to track pollution levels and understand the overall air quality.
Environmental Research: Employed in research projects to gather data on various gases and their concentrations.
Personal Projects: Popular among makers and DIY enthusiasts for building air quality monitoring devices.
Calibration: Calibration might be necessary for accurate readings. This involves exposing the sensor to clean air to establish a baseline resistance value.
Reading Values: The analog output voltage from the MQ-135 module can be connected to an analog pin on a microcontroller (e.g., Arduino) to read the gas concentration. The specific gas being detected can be inferred from calibration data.
Cross-Sensitivity: The MQ-135 sensor can exhibit cross-sensitivity to various gases, which might affect its accuracy in mixed gas environments.
Environmental Factors: Factors like temperature, humidity, and the presence of other gases can influence its performance. When integrating the MQ-135 Air Quality/Gas Detector Sensor Module into a project, proper calibration and accounting for potential cross-sensitivity are crucial for obtaining accurate and meaningful air quality readings.
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MQ 135 Air Quality/Gas Detector Sensor Module For Arduino
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- Product SKU: KG058
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Specification
Description
The MQ-135 Air Quality/Gas Detector Sensor Module is a widely used sensor module designed to detect a range of air pollutants and gases.Here's a comprehensive overview of the MQ-135 sensor module:
Purpose: The MQ-135 sensor module is designed to detect a variety of gases and air pollutants, making it suitable for air quality monitoring and environmental sensing applications.Sensitivity: It exhibits varying sensitivity to gases like ammonia, nitrogen dioxide, benzene, carbon monoxide, and other harmful substances.
Principle: The sensor uses a semiconductor gas sensor where the resistance of the sensing material changes based on the concentration of gases in the air.
Features:
Multi-Gas Detection: The MQ-135 module is capable of detecting various gases and pollutants, offering a wide range of applications.Analog Output: The module typically provides an analog voltage output that can be correlated to the concentration of the detected gas.
Versatility: Due to its broad sensitivity to multiple gases, it's suitable for diverse air quality monitoring projects.
Affordability: The MQ-135 sensor module is cost-effective, making it a popular choice for hobbyists and environmental monitoring enthusiasts.
Applications:
Indoor Air Quality: The MQ-4 sensor is widely used to detect methane leaks in households, industries, and commercial spaces. It's particularly useful in preventing potential explosions due to gas leaks.Outdoor Air Quality: Deployed in outdoor environments to track pollution levels and understand the overall air quality.
Environmental Research: Employed in research projects to gather data on various gases and their concentrations.
Personal Projects: Popular among makers and DIY enthusiasts for building air quality monitoring devices.
Using the MQ-135:
Powering the Sensor: The sensor usually requires a 5V DC power supply.Calibration: Calibration might be necessary for accurate readings. This involves exposing the sensor to clean air to establish a baseline resistance value.
Reading Values: The analog output voltage from the MQ-135 module can be connected to an analog pin on a microcontroller (e.g., Arduino) to read the gas concentration. The specific gas being detected can be inferred from calibration data.
Considerations:
Warm-Up Time: The sensor might require some time to stabilize before providing accurate readings.Cross-Sensitivity: The MQ-135 sensor can exhibit cross-sensitivity to various gases, which might affect its accuracy in mixed gas environments.
Environmental Factors: Factors like temperature, humidity, and the presence of other gases can influence its performance. When integrating the MQ-135 Air Quality/Gas Detector Sensor Module into a project, proper calibration and accounting for potential cross-sensitivity are crucial for obtaining accurate and meaningful air quality readings.
Technical Details Of MQ-135 Sensor Module
- Model: MQ-135
- Operating Voltage (VDC): 5
- Detecting Range: 100ppm to 1000ppm
Physical Attributes
- Length * Width * Height (mm): 36 x 19 x 21
- Weight (gm): 6
Integration with Arduino: MQ-135 Sensor Module
Sample Code
Additional Details
- Sensitivity to Ammonia, Sulphide, and Benzene steam
- The TTL output signal is a low level
- Analog 0 ~ 5 v voltage output, the higher the concentration, the higher the voltage
- Color is showing pictures.
- Sensitive for benzene, alcohol, smoke
- Fast response and recovery
- Adjustable sensitivity
- Signal output indicator
- Output voltage boosts along with the concentration of the measured gases increases.
Product Video
Useful Links
Documentation
- a- Datasheet
Package Includes
- 1 x MQ 135 Air Quality/Gas Detector Sensor Module For Arduino
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