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Detailed Description:

Ensure the safety of your home, kitchen, and industrial projects with the MQ-6 Gas Sensor Module, a specialized solution for detecting the presence of flammable gases. This highly sensitive sensor is primarily designed to detect LPG (Liquefied Petroleum Gas), propane, and butane, making it an indispensable component for building reliable gas leakage alarms and safety systems. The sensor works on the principle of a tin dioxide (SnO2​) semiconductor, whose electrical conductivity changes in direct proportion to the concentration of these gases in the air.

The versatility of the MQ-6 module is a key feature, as it offers both analog (AO) and digital (DO) outputs. The analog output provides a continuous voltage signal that allows you to measure and log the precise gas concentration, perfect for real-time monitoring. For a simple and direct warning system, the digital output provides a straightforward HIGH/LOW signal. The sensitivity threshold for this digital output can be easily adjusted using the on-board potentiometer, allowing you to set a specific gas level to trigger a buzzer or LED alarm.

Operating on a standard 5V DC supply, the MQ-6 module is fully compatible with popular microcontrollers like Arduino, ESP32, and Raspberry Pi. It is widely used in a variety of safety-critical applications, including domestic and industrial gas leak detectors, portable gas monitors, and educational projects. With its fast response time, stable performance, and wide detection range of 200 to 10,000 ppm, the MQ-6 Gas Sensor Module is a low-cost, high-performance solution. Whether you are a student, a hobbyist, or a professional, this sensor is an essential component for any project, that requires dependable and accurate gas sensing.

The MQ-6 Gas Sensor Module is built around the MQ-6 gas detection sensor, optimized to detect LPG (Liquefied Petroleum Gas), butane, propane, methane, and other combustible gases. It provides both an analog signal (A0) and a digital output (D0) that can be triggered at a threshold set via the onboard potentiometer.

It is widely used in gas leakage detection systems, industrial safety, and IoT-based smart home appliances. With a fast response time and high sensitivity, it can alert systems or users instantly when gas concentration increases beyond safe limits.

Key Features:

• Detects LPG, propane, methane, and butane

• Dual output: Analog (A0) and Digital (D0)

• Built-in adjustable sensitivity potentiometer

• High sensitivity and quick response time

• Long life and reliable stability

• Compatible with Arduino, ESP32, Raspberry Pi

• Compact design suitable for embedded safety projects

Technical Specifications:

How to Use:

1. Connect VCC (5V), GND, and A0/D0 to the corresponding microcontroller pins.

2. Allow 1–2 minutes for the sensor to stabilize after power-up.

3. Use analogRead() to measure gas concentration or digitalRead() to detect threshold breach.

4. Adjust the potentiometer to fine-tune the digital output trigger level.

Applications:

• LPG leak detection systems for kitchens and industries

• Smart gas alarms and safety devices

• IoT-based gas monitoring projects

• Propane/butane detection in storage rooms

• Portable or wearable gas detectors

• Educational kits and embedded systems projects

• Industrial fire prevention systems

Package Includes:

• 1 x MQ-6 Gas Sensor Module