Name: MQ4-Methane CNG Gas Sensor
Brand: Oxymora
SKU: OM0048
Availability: InStock

MQ4-Methane CNG Gas Sensor

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The MQ-4 Methane CNG Gas Sensor is a highly sensitive and cost-effective gas detection module designed for measuring methane and natural gas concentrations in the air. It outputs both analog and digital signals, making it suitable for microcontroller-based gas leak detection systems.

SKU: OM0048

Brand: Oxymora

Product details

The MQ-4 Methane CNG Gas Sensor module is engineered for reliable detection of methane (CH₄) and natural gas in the environment. Featuring a sensitive SnO₂ gas-sensing layer, the sensor increases conductivity when exposed to methane, enabling accurate gas measurement. The module includes an onboard LM393 comparator to provide both analog and digital outputs, along with an adjustable potentiometer for threshold calibration.

It operates using a 5V power supply and is ideal for gas leakage detection applications such as home safety alarms, industrial monitoring systems, and IoT gas-sensing projects. Designed with high stability and long lifetime, the MQ-4 module is easy to interface with microcontrollers like Arduino, ESP32, and Raspberry Pi.

Specifications

Item Type: Gas Sensor
Gas DetectedMethane (CH₄), Natural Gas
Detection Range200 – 10,000 ppm
Operating Voltage5V DC
Heater Voltage5V ± 0.2V
Heating Consumption≤ 900 mW
Load ResistanceAdjustable via onboard potentiometer
Output SignalAnalog (A0) + Digital (D0)
Response Time≤ 10 seconds
Recovery Time≤ 30 seconds
SensitivityHigh sensitivity to methane & natural gas
Operating Temperature–10°C to +50°C
ApplicationsSmart home and IoT-based safety systems , Portable gas detectors and handheld safety devices , Pipeline and fuel station monitoring