MQ-3 Alcohol Gas Sensor

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.

Features:

• The main chip: LM393, MQ-3 gas sensor
• 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

Specifications:

• Operating Voltage: DC3-5V
• Response Time: ≤10s (70% Response)
• Recovery Time: ≤30s (70% Response)
• Heating Resistance: 31Ω±3Ω
• Heating Current: ≤180mA
• Heating Voltage: 5V±0.2V
• Heating Power: ≤900mW
• Detect Voltage: ≤15V
• Ambient Temperature: -10℃ to 65℃, Humidity: ≤95%RH
• Storage Conditions: Temperature: -20℃-70℃, Humidity:≤ 70%RH
  

We also carry:

• MQ-2 Flammable Gas and Smoke Sensor
• MQ-3 Alcohol Gas Sensor
• MQ-4 Methane Gas Sensor
• MQ-5 LPG and Natural Gas Sensor
• MQ-6 LPG/Isobutane/Propane Gas Sensor
• MQ-7 Carbon Monoxide Gas Sensor
• MQ-8 Hydrogen Gas Sensor
• MQ-9 Carbon Monoxide and Flammable Gas Sensor
• MQ-135 Air Quality Sensor