About this item

🌫️ MQ-7 Gas Sensor Module – Carbon Monoxide (CO) Detector

The MQ-7 gas sensor module is specifically designed for detecting carbon monoxide (CO) in the air. Featuring both analog and digital outputs, it can be easily integrated with Arduino, ESP32, Raspberry Pi, and other embedded systems for air quality monitoring and hazardous gas detection.

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🛡️ Features & Advantages

• 🌫️ Carbon monoxide (CO) detection
• 📡 Analog and digital outputs
• 🔧 Adjustable sensitivity via potentiometer
• ⚡ 5V compatible operation
• 🧰 Easy integration with microcontrollers
• 🚨 Suitable for alarm and monitoring systems

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📦 Technical Description

• 🧩 Sensor: MQ-7
• 🎯 Primary detected gas: Carbon monoxide (CO)
• ⚡ Supply voltage: 5V DC
• 📡 Analog output (AO): gas concentration level
• 🔔 Digital output (DO): adjustable threshold output
• 🔧 Sensitivity adjustment: onboard potentiometer
• 🌡️ Built-in heater: required for sensor operation
• 📏 Compatible with Arduino and ESP32 platforms

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🛠️ Applications

• 🚨 Carbon monoxide detection systems
• 🏠 Indoor air quality monitoring
• 🤖 Arduino / ESP32 projects
• 🧪 Environmental monitoring systems
• 🔬 Educational and experimental applications

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⚠️ Usage Notes

• ❗ Warm-up time is required before obtaining reliable readings
• 🔧 Accurate measurements require proper calibration
• 🛡️ Do not use as the sole certified safety device
• 🌡️ Avoid extremely humid or dusty environments

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✨ Key Features

• 🌫️ CO detection
• 📡 Analog and digital outputs
• 🔧 Adjustable sensitivity
• ⚡ 5V operation
• 📦 Compatible with Arduino, ESP32, and Raspberry Pi

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📦 Package Contents

• 1 × MQ-7 Gas Sensor Module