Description
MQ-9 carbon monoxide, combustible gas sensor detection alarm module Product description Specifications: Main chip: LM393,MQ-9 gas sensor Operating voltage: DC 3-5V with the signal output indication. the dual signal output (analog output, and TTL level output). TTL output valid signal is low level, can connected to microcontroller directly. 0 ~ 5V analog output voltage, the higher concentration the higher voltage. with high sensitivity and good selectivity for carbon monoxide(CO)combustible gas with a long service life and reliable stability. rapid response and recovery characteristics. Size:36mm X24mm X22mm(L * W * H)
