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2pcs MQ-3 MQ3 Alcohol Ethanol Sensor Breath Gas Ethanol Detection

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$4.99

$ 1 .99 $1.99

In Stock
  • Working Voltage: DC 5V
  • With signal ouput instructions
  • Two-way signal output (TTL level output and analog output)
  • TTL output effectively signal for low level(when the output low level signal lights, can directly connected microcomputer)
  • Analog output 0 ~ 5V voltage, the higher the concentration, the higher the voltage.


Product Details:
Working Voltage: DC 5V
With signal ouput instructions
Two-way signal output (TTL level output and analog output)
TTL output effectively signal for low level(when the output low level signal lights, can directly connected microcomputer)
Analog output 0 ~ 5V voltage, the higher the concentration, the higher the voltage
Has a high sensitivity and good selectivity
Has long service life and reliable stability
Rapid response recovery features
For motor vehicles and other prohibition drunken drivers homework personnel on-site testing, also used in other places of ethanol vapor detection.