MQ-2 Smoke Sensor

Feature: MQ-2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module For Arduino
Specification:
Size:32mmx22mmx27mm/1.26”x0.86”x1.06”
Main Chip: The LM393, ZYMQ – 2 Gas Sensor
Working Voltage: DC 5 V
Great for home or factory gas leakage detection
Use for Detecting: Combustible gas such as LPG, butane, methane, alcohol, propane, hydrogen, smoke, etc