Sell MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module For Arduino best price

1, the use of high-quality double-panel design, with power instructions and TTL signal output instructions; 2, with DO switch signal (TTL) output and AO analog signal output; 3, TTL output valid signal is low. (When the output low signal lights, can be directly connected to the microcontroller or relay module) 4, the analog output voltage with the higher the higher the voltage the higher the voltage. 5, the liquefied petroleum gas, natural gas, city gas, smoke has a better sensitivity. 6, there are four screw holes to facilitate positioning; 7, product dimensions: 32 (L) * 20 (W) * 22 (H) 8, with long service life and reliable stability 9, fast response to recovery features