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Item #:
111107238
1Pc MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module for Arduino,Indoor Air Quality Meters,Airflow and Air Quality
Item #:
111107238
GMD 518
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Detect harmful gases including ammonia, nitrogen oxides, alcohol, benzene, smoke, and CO2 for comprehensive air monitoring.
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What Stands Out
Hazardous Gas Detection
The MQ-135 sensor is designed specifically to detect various hazardous gases, ensuring a safe indoor environment. Perfect for DIY enthusiasts and professionals seeking reliable air quality measurements.
Arduino Compatibility
Easily integrates with Arduino, making it accessible for developers and hobbyists to create air quality monitoring projects. Provides real-time feedback for effective air quality management.
Versatile Applications
Ideal for a range of applications including indoor air quality meters and environmental monitoring systems, catering to diverse user needs from home use to industrial settings.
Product Details
| Item Weight | 0.1 lbs (50 grams) |
Who Should Buy?
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DIY Enthusiasts
Ideal for hobbyists who want to build projects involving air quality monitoring using Arduino.
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Educational Institutions
Useful for classrooms to educate students about environmental science and air quality measurement techniques.
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Indoor Air Quality Monitoring
Great for individuals seeking to monitor air quality in homes or offices to improve health and well-being.
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Professional Use
Not suitable for industries requiring highly precise and calibrated air quality measurements.
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Non-technical Users
May be challenging for individuals without technical skills or knowledge about Arduino integration.
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Short-term Projects
Less ideal for users who need immediate results without the time for setup and calibration.
Product Description
1Pc MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module for Arduino,Indoor Air Quality Meters,Airflow and Air Quality
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the MQ135 Air Quality Sensor used for?
Answer: The MQ135 Air Quality Sensor is designed for detecting hazardous gases in indoor environments, making it an essential tool for air quality monitoring. It can sense a variety of gases including ammonia, smoke, carbon dioxide, and benzene. This versatility allows it to be used in diverse applications such as smart home systems, environmental monitoring, and industrial settings. By integrating this sensor with Arduino, users can create custom air quality meters that provide real-time data on air pollutants, helping in maintaining a healthy indoor environment. -
Question:
How does the MQ135 sensor work?
Answer: The MQ135 sensor operates based on its semiconductor’s ability to detect various gases by changing its resistance in response to gas concentrations. This change in resistance is measured and converted into an analog voltage which can be read by an Arduino board. This functionality allows for precise monitoring of air quality. When implementing the sensor, it's common to calibrate it for the specific gases of interest, ensuring the readings are accurate. This makes it ideal for both personal and research applications in air quality management. -
Question:
Can the MQ135 sensor be used with other microcontroller platforms?
Answer: Yes, while the MQ135 sensor is frequently used with Arduino due to its ease of integration, it is also compatible with other microcontroller platforms such as Raspberry Pi and ESP32. This flexibility allows tech enthusiasts and developers to incorporate the sensor into various projects, from DIY air quality monitors to fully automated climate control systems. Its adaptability makes it suitable for a wide range of applications, enhancing user experience and project outcomes in air quality monitoring. -
Question:
Is there a specific way to calibrate the MQ135 sensor?
Answer: Calibration of the MQ135 sensor is crucial for accurate readings and involves exposing the sensor to known concentrations of the target gases. This process usually follows a predefined method where you take readings in a controlled environment. The data obtained is then used to create a calibration curve, allowing users to translate sensor resistance into gas concentration. Proper calibration ensures optimal performance and reliability in air quality monitoring applications, making it an indispensable step for any serious project utilizing this sensor. -
Question:
What are the common applications of the MQ135 sensor?
Answer: The MQ135 sensor is widely used in various applications, including home automation systems, indoor air quality monitoring, and environmental testing. For instance, it can be part of a smart home system that alerts residents when air quality drops below a healthy threshold. Additionally, it is commonly utilized in research projects focused on pollution levels in urban areas. With its broad applications, it serves as a valuable tool for enhancing air quality and ensuring healthier living conditions. -
Question:
How do I connect the MQ135 sensor to an Arduino?
Answer: Connecting the MQ135 sensor to an Arduino is a straightforward process. Start by wiring the sensor's VCC to the Arduino's 5V pin, and GND to the Arduino's ground. Then, connect the signal pin (usually labeled 'A0') from the sensor to one of the analog input pins on the Arduino. After making the connections, you can upload a code that reads the analog values and processes them for air quality readings. This simple setup enables you to start monitoring air quality immediately. -
Question:
What should I consider when placing the MQ135 sensor?
Answer: When placing the MQ135 sensor, consider areas with good airflow to ensure accurate readings. Avoid positioning the sensor near heat sources, direct sunlight, or areas with high humidity, as these can affect its sensitivity. Ideally, place it at a height where it can effectively capture air samples, like wall-mounted positions in living spaces. Proper placement guarantees reliable measurements, enhancing the overall effectiveness of air quality monitoring systems. -
Question:
Can I use multiple MQ135 sensors in a single setup?
Answer: Yes, using multiple MQ135 sensors in a single setup is entirely feasible. This approach allows for more comprehensive air quality monitoring across different areas in a building or environment. Each sensor can be calibrated for specific zones, providing a detailed view of which areas may have higher pollution levels. By integrating multiple sensors with a central Arduino or other microcontrollers, users can develop advanced monitoring systems for applications ranging from environmental research to smart home automation. -
Question:
What additional components might I need with the MQ135 sensor?
Answer: When working with the MQ135 sensor, you'll typically need an Arduino board for processing data and possibly a breadboard for easy connections. Depending on your setup, you might also require resistors for calibration, jumper wires for connections, and an LCD or LED display to visualize the results. These additional components help facilitate effective readings and enhance your air quality monitoring projects, allowing for a more interactive interface and user experience. -
Question:
Where can I buy 1Pc MQ135 MQ-135 Air Quality Sensor in The Gambia?
Answer: You can purchase the 1Pc MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module on Ubuy. Ubuy offers a wide selection of electronic components, including air quality sensors, making it a reliable source for tech enthusiasts and DIY project creators seeking this specific module in The Gambia. With Ubuy's user-friendly interface, you can easily find and order the MQ135 sensor along with various accessories to enhance your projects.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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Features & Benefits
- Advanced air quality sensor detects multiple harmful gases.
- Seamless compatibility with microcontrollers via analog and digital outputs.
- Operates on a 5V DC power supply with built-in voltage regulation.
- Features an adjustable potentiometer for sensitivity control.
- Compact design ideal for indoor air quality monitoring projects.
- Perfect for Arduino integration to ensure comprehensive air quality assessment.
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