MQ-3 Alcohol Ethanol Sensor Breath Gas Detection Sensor Module For Arduino

Description: The main chip: LM393, MQ-3 gas sensor Operating voltage: DC3-5V Response time: 10s (70% Response) Recovery time: 30s (70% Response) Heating resistance: 313 Heating Current: 180mA Heating Voltage: 5V0.2V Heating Power: 900mW detect Voltage: 15V Ambient Temperature: -10 to 65 Humidity: 95%RH Storage conditions: Temperature:-20-70,Humidity: 70%RH Features: Signal output instructions; 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; Has a high sensitivity and good selectivity to ethanol vapor; Has a long life and reliable stability; Rapid response recovery characteristics; Applications: For motor vehicle drivers and other non-drinking and operating personnel on-site testing, also used in other places of ethanol vapor detection, detection of alcohol: detection range of 10 to 1000ppm Package included: 1 x Alcohol module If you want another model, you can click on the ID Model Gas Detection Item ID MQ2 flammable gas/smoke 1144079 MQ3 alcohol steam 1414301 MQ4 Natural gas/Methane 1377624 MQ5 Liquefied gas/Methane/Coal gas /LPG 1378464 MQ6 Liquefied gas/Isobutane/Propane/LPG 1378477 MQ7 Carbon monoxide 915474 MQ8 hydrogen 1378425 MQ9 Carbon monoxide flammable gas 1378463 MQ131 Ozone Concentration 1183257 MQ135 Ammonia/sulfide/benzene vapor 1378465 A set of MQ 1005800