MQ-3 Smoke Sensor Drinking & Ethanol Vapor Detection For Alcohol

Application 

• Used for the drink detection of the vehicle and other risks, ethanol vapor detection.   

Specification 

• Gas: Alcohol 

• Detection Range: 10~1000ppmm alcohol 

• Characteristics Gas: 125ppmm alcohol 

• Sensitivity: R in air/Rin typical gas≥5 

• Sensing Resistance: 1~20KΩ in air 

• Response Time: ≤ 10s (70% Response) 

• Recovery Time: ≤ 30s (70% Response) 

• Heating Resistance: 31Ω ± 3Ω 

• Heating Current: ≤ 180mA 

• Heating Voltage: 5.0V ± 0.2V 

• Heating Power: ≤ 900mW 

• Measuring Voltage: ≤ 24V 

• Working Conditions 

• Temperature: -20 Celsius ~ +55  Celsius  

• Humidity: ≤ 95% RH 

• Environmental Oxygen Content: 21% 

Storage Conditions 

• Temperature: -20  Celsius   ~ +70  Celsius  

• Humidity: ≤ 70% RH