MQ-4 Methane, CNG & Natural Gas Detection Sensor Module

MQ-4 Methane & Natural Gas (CNG) Sensor Module

Features high sensitivity to methane and natural gas with low cross-sensitivity to alcohol and smoke. Essential for domestic kitchen gas leak alarms and CNG automotive safety monitors.

Specifications

• Detects: Methane (CH4), Natural Gas, CNG (300 to 10000 ppm)
• Outputs: Analog voltage output (A0) and adjustable digital threshold (D0)
• Heater Voltage: 5.0V AC or DC
• Onboard LM393 comparator with sensitivity potentiometer