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MQ-4 Gas Sensor
MQ-4 Gas Sensor
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MQ-4 gas sensor

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Gas Sensor MQ-4 gas sensor

EMS-00010-C

(Last updated) Jun 20, 2026

MQ-4 Gas Sensor

Methane and CNG detection module

Subcategory
EMS - Input: Sensors

Description

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.

Manufacturer Details

Manufacturer Part Number
Hanwei Electronics MQ-4
Winsen Electronics MQ-4
Waveshare MQ-4

Technical Specifications

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

Part Family Variants (8)

Variant Title Status
EMS-00010-A Smoke Gas Sensor Published
EMS-00010-B MQ-3 Sensor Published
EMS-00010-C Current MQ-4 Gas Sensor Published
EMS-00010-D MQ-5 Gas Sensor Published
EMS-00010-E MQ-6 LPG Gas Sensor Published
EMS-00010-F MQ-7 Sensor Published
EMS-00010-G MQ-135 Sensor Published
EMS-00010-H Hydrogen Sensor Published

Frequently Used Together

Frequently paired together in real-world projects.

ED - Electronic Device
Methane Gas Sensor

EDT-00001-C

Methane Gas Sensor

Detects methane and CNG gas

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