2 Pack MQ 6 LPG Gas Sensor Module Liquefied Propane Iso Butane Butane Combustible Gas Detection Sensor

Module Features : 1 , Using high-quality dual-panel design, with power indicator and TTL signal output instructions; 2 , The switching signal having a DO (TTL) output and analog output AO ; 3, TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module ) 4 , 0 ~ 5V analog output voltage , the higher the concentration the higher the voltage . 5 , Propane , butane , LPG, LNG has a good detection sensitivity. 6 , There are four screw holes for easy positioning ; 7 ,Product dimensions : 32 (L) * 20 (W) * 22 (H) 8 , Has a long life and reliable stability 9 , Rapid response and recovery characteristics