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MQ-4 Gas Sensor
MQ-4 Gas Sensor
MQ-4 Gas Sensor
MQ-4 Gas Sensor

EMS-00010-C

(Last updated) Jun 20, 2026

MQ-4 Gas Sensor

Methane and CNG detection module

The MQ-4 Gas Sensor Module is used to detect methane (CH₄), CNG, and natural gas leaks. It provides analog and adjustable digital outputs for gas detection. It is widely used in gas leakage alarms, safety systems, and IoT monitoring applications.
Model MQ-4
Detecting range 200 to 10000 ppm.
Operating Voltage 3 ~ 5 V
Length 3.1 cm
Height 2.1 cm
Width 1.9 cm