MQ-3 Alcohol Ethanol Sensor Breath Gas Ethanol Detection for Arduino 51

Product Details:

• Alcohol Detector 

• Condition: New 

• Size: approx. 32 x 22 x 27mm 

• Main chip: LM393, ZYMQ-3 gas detector 

• 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 

• Color is shown as pictures