MQ-139 Multi-Gas Sensor

Product Description

The MQ-139 Multi-Gas Sensor is a high-performance gas detection sensor designed to detect a variety of gases with excellent sensitivity and fast response. It is widely used in gas detection systems, air quality monitoring, industrial safety equipment, smart home applications, and IoT projects.

Based on Metal Oxide Semiconductor (MOS) technology, the MQ-139 provides reliable gas concentration detection and can be easily integrated with popular development platforms such as Arduino, ESP32, STM32, and Raspberry Pi.

Key Features

• High-sensitivity multi-gas detection.
• Fast response and recovery time.
• Stable and reliable performance.
• Analog output for easy signal acquisition.
• Compact and lightweight design.
• Easy integration with microcontrollers and embedded systems.
• Suitable for indoor air quality monitoring and gas alarm systems.
• Ideal for educational, DIY, and industrial applications.

Technical Specifications

Detectable Gases

• Ammonia (NH₃)
• Benzene
• Smoke
• Volatile Organic Compounds (VOCs)
• Various Organic Gases

Applications

• Gas Leak Detection Systems
• Air Quality Monitoring
• Smart Home Systems
• Industrial Safety Equipment
• Environmental Monitoring
• IoT Projects
• Laboratory Applications
• Educational Electronics Projects

Advantages

• Easy to interface with Arduino, ESP32, STM32, and Raspberry Pi.
• High sensitivity with stable performance.
• Fast response to gas concentration changes.
• Compact size for easy installation.
• Low power consumption.
• Suitable for continuous monitoring applications.

Package Includes

• MQ-139 Multi-Gas Sensor ×1

The MQ-139 Multi-Gas Sensor is an excellent solution for detecting multiple gases and monitoring air quality, offering reliable performance, high sensitivity, and easy integration into a wide range of electronic and IoT applications.