MQ-2 Smoke Hydrogen Butane LPG Methane Sensor Detector Module For Arduino US
MQ-2 Smoke Hydrogen Butane LPG Methane Gas Sensor Detector Module
This MQ-2 smoke and gas detector is used to detect smoke and combustible gases including hydrogen, methane, butane, alcohol and liquid propane gas (LPG). Suitable for home and industrial use, it has fast response and recovery characteristics, a long life and reliable stability.
The module features dual signal outputs: An analog output (0V to ~5V), the higher the gas or smoke concentration, the higher the voltage, and a digital TTL level output to signal the presence or absence of gas. The TTL threshold is adjustable with the onboard potentiometer.