5pcs LM393 MQ3 MQ-3 Sensor Ethanol Gas Analog Sensor TTL Output Module

Description 1 Size 32mm x 22mm x 22mm2 The main chip LM393 MQ 3 gas sensor3 Work voltage DC3 5V4 With the signal output instructions 5 Dual output analog output and TTL level output 6 TTL output valid signal is low the microcontroller can be connected directly 7 0 5V analog output voltage the higher the voltage the higher the concentration 8 The ethanol vapor with high sensitivity and good selectivity Application For motor vehicle drivers and other non drink operations of on site inspection but also for other places of ethanol vapor detection detection of alcohol range detection range of 10 1000ppm Package includes 5 x Gas sensor module