INVENTO MQ-3 alcohol gas sensor module ethanol concentration detection circuit Arduino Electronic Components Electronic Hobby Kit

100% brand new and high quality Dual signal output (analog output, and TTL level output) TTL output valid signal is low, can be connected directly to the microcontroller 0 ~ 5V analog output voltage, the higher the concentration the higher the voltage The gas, natural gas, city gas, smoke better sensitivity Has a high sensitivity and good selectivity to ethanol vapor Has a long life and reliable stability Rapid response recovery characteristics Size: 35mm X20mm X20mm/1.37*0.78*0.78" Input Voltage: DC5V Power(Current): 150mA DO Output: 0.1, 5V AO Output: 0.1-0.3V Detectable Concentration: 0.04-4mg/L Application: For motor vehicle drivers and other non-drinking workers on-site inspection, but also for other places of ethanol vapor detection, detection of alcohol range.