MQ-3 Alcohol Ethanol Sensor Breath Gas Detection Module

R54.90  Inc VAT
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;


Features

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

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

What's in the box?

1 X Alcohol sensor module

Resources

Analog to Digital converter not included
Wiki
  • Availability: 9 In Stock
  • Model: MQ3 alcohol sensor orange
  • Brand: Generic3