Description

The MQ-4 Gas Sensor is a highly sensitive module designed to detect a variety of combustible gases, with a particular focus on methane and natural gas. Using low conductivity tin oxide (SnO2) material, the sensor detects increasing gas concentrations through changes in conductivity. The sensor provides an output signal that corresponds to the gas concentration in the air. It offers excellent sensitivity to gases such as methane, propane, and butane, making it an ideal solution for applications such as gas leak detection in homes, factories, and industrial settings.

Why Choose the MQ-4 Gas Sensor?

The MQ-4 Gas Sensor offers reliable and cost-effective gas detection. Its high sensitivity to methane, propane, and butane makes it an essential tool for gas leak detection in a range of environments. The sensor provides both TTL digital output and analog output, allowing for flexible integration into various systems. Its dual-panel design includes power and signal indicators for easy monitoring. With rapid response times and reliable stability, the MQ-4 ensures consistent performance in detecting combustible gases.

Key Features

High Sensitivity: Detects methane, propane, butane, and other combustible gases.
Dual Output: Provides both analog (AO) and TTL (DO) digital signals.
Wide Application Range: Suitable for use in gas leak detection systems for homes, factories, and more.
Easy Integration: TTL signal output can be directly connected to microcontrollers or relay modules.
Rapid Response: Quick response and recovery times.
Long Lifespan: Durable and reliable for extended use.
Easy Positioning: Includes four screw holes for simple mounting.

Technical Specifications

Input Voltage: DC 5V
Power Consumption: 150mA
DO Output: TTL digital 0 and 1 (0.1 and 5V)
AO Output: 0.1V to 4V (depending on gas concentration)
Operating Temperature: -20°C to +50°C
Response Time: Approximately 20 seconds to stabilise
Mounting: Four screw holes for easy positioning

With its high sensitivity and versatile application, the MQ-4 Gas Sensor is an essential component for safely detecting combustible gases in a range of environments. Whether for home or industrial use, this sensor ensures early detection of potentially dangerous gas leaks, providing peace of mind and safety for all users.