Gas leaks: a silent threat! In critical moments, accurate and reliable detection is the line of defense for life and property safety. The MQ-G4 gas sensor, with its excellent sensitivity to methane gas and strong anti-interference capabilities, has become a globally trusted safety guardian, providing solid protection for your home and industrial environments.

MQ-G4 Semiconductor CH4 Sensor

    The MQ-G4 gas sensor is the reliable core of your safety monitoring system. Its core utilizes a special gas-sensitive material, tin dioxide (SnO2). In clean air, its conductivity is very low; however, once combustible gases such as natural gas (primarily methane) are present, the sensor's conductivity increases significantly with increasing gas concentration. This crucial change is easily converted into an electrical signal output proportional to the gas concentration through a simple external circuit, enabling accurate monitoring.

    The core advantage of the MQ-G4 lies in its superior performance: it exhibits extremely high sensitivity to methane gas and operates stably over a wide concentration range, ensuring timely leak detection. Furthermore, it demonstrates strong resistance to common interfering gases such as alcohol, greatly reducing the risk of false alarms and making your alarm system more reliable. In addition, the MQ-4 boasts significant advantages such as long lifespan, low cost, and extremely simple drive circuitry, making it an ideal choice for building cost-effective, stable, and durable gas alarm systems.

    Wide Range of Applications: The MQ-G4 sensor is the reliable heart of home gas leak alarms, constantly protecting the safety of your kitchen and home; it is also widely used in industrial combustible gas alarms, ensuring safe production in factories, warehouses, and other locations; simultaneously, it is a key component of portable gas detectors, providing immediate safety assurance for field workers and inspectors.

    Choosing the MQ-G4 means choosing peace of mind. Let this highly sensitive, interference-resistant, long-life, and low-cost sensor become your first intelligent line of defense against gas risks!

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