MQ-135 Air Quality/Gas Detector Sensor
The MQ-135 Air Quality/Gas Detector Sensor is a sensitive gas sensing module designed to detect harmful gases and monitor air quality in environmental monitoring, automation, and embedded system applications. This sensor uses a semiconductor sensing element to detect gases such as ammonia, nitrogen oxides, alcohol, benzene, smoke, and other harmful vapors. Available at Directronics, the MQ-135 Air Quality Sensor Module is ideal for students, hobbyists, makers, educators, and professional engineers working on Arduino, IoT, smart monitoring, and air quality measurement projects.
Features:
• Detects Air Quality and Harmful Gases
• Sensitive to NH3, NOx, Alcohol, Benzene, Smoke, and Other Gases
• Provides Analog and Digital Output Signals
• Adjustable Sensitivity Using Onboard Potentiometer
• Operating Voltage: 5V DC
• Built-in Comparator Circuit
• Fast Response and Recovery Time
• High Sensitivity and Stable Performance
• LED Indicator for Power and Detection Status
• Easy Interface with Arduino, ESP32, ESP8266, Raspberry Pi, and Other Microcontrollers
• Compact and Easy-to-Use Design
• Suitable for Air Quality Monitoring Applications
Why Choose MQ-135 Air Quality/Gas Detector Sensor?
• Simple and effective gas detection solution
• Helps monitor indoor and outdoor air quality levels
• Easy integration with popular development boards
• Adjustable sensitivity for different gas detection requirements
• Ideal for IoT-based environmental monitoring systems
• Reliable performance for DIY and professional projects
Applications:
• Air Quality Monitoring Systems
• Smart Home Automation
• Gas Leakage Warning Systems
• Environmental Monitoring Projects
• IoT Air Quality Stations
• Industrial Safety Monitoring
• Pollution Monitoring Systems
• Robotics Projects
• Embedded System Development
• DIY Electronics Projects
Technical Specifications:
• Sensor Type: Semiconductor Gas Sensor
• Model: MQ-135
• Target Gases: NH3, NOx, Alcohol, Benzene, Smoke, CO₂ Related Air Quality Detection
• Operating Voltage: 5V DC
• Output Type: Analog and Digital
• Interface: AO (Analog Output) and DO (Digital Output)
• Sensitivity Adjustment: Onboard Potentiometer
• Detection Method: Gas Concentration Variation
• Preheating Time: Required for Stable Readings
• Communication: Direct GPIO Interface
Package Includes:
• 1 × MQ-135 Air Quality/Gas Detector Sensor Module
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Why Buy from Directronics?
Directronics provides quality development boards, sensors, electronic components, robotics modules, and IoT solutions for students, makers, educational institutions, startups, and industry professionals. Explore our complete range of Arduino, ESP32, ESP8266, Raspberry Pi, and embedded development products to bring your ideas to life.
Note: Product images are for illustration purposes only. Please review the specifications and compatibility requirements before placing your order.