2 STCK. MQ-2 Rauchgas Flüssiggas Butan Wasserstoff Gas Sensor Detektor Modul Arduino
Module Applications: Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc. ; 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 , analog output voltage with the higher concentration of higher voltage. 5, a gas, natural gas, city gas , smoke better 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 a.
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